The Reseller’s Playbook

The method in this book begins with the Comp-First Loop: research sold prices before committing money, compare the item in front of you with actual completed sales, calculate your maximum purchase price, then update your estimate after the item sells. This loop keeps pricing connected to evidence rather than hope.

The Comp-First Loop

Run the Comp-First Loop in this order:

1. Identify the exact item. Record the brand, model number, size, color, age, included parts, and condition. “DeWalt drill” is too broad. “DeWalt DCD791B bare-tool brushless drill, 20-volt, no battery” gives you a useful search target. The model number often appears on a label, rating plate, handle, or battery compartment.

2. Search completed or sold listings. On eBay, search the item and turn on the completed or sold listings filter. On Facebook Marketplace, check recent sold examples when the platform provides them, then compare local listings carefully. Search the exact model first, then remove one detail at a time if you find too few results. Sold listings matter because they show completed transactions, not unsatisfied asking prices.

3. Separate true matches from look-alikes. Compare condition, accessories, quantity, shipping method, and working status. A working mixer with its bowl and attachments does not match a broken mixer sold for parts. A three-piece tool bundle does not establish the price for one tool. Mark each result as a close match, usable comparison, or poor comparison.

4. Build a price range. Do not rely on one unusually high sale. Review several close matches and identify the lower, middle, and upper prices. The middle of the group often gives you a safer expected selling price. Use the upper end only when your item matches the better examples in condition and completeness.

5. Calculate your maximum purchase price. Start with the expected selling price, then subtract selling fees, shipping or delivery costs, supplies, repair costs, and your required profit. The amount left becomes your maximum purchase price. This step protects you from paying based on excitement.

6. Record the result. Write the item, search terms, sold prices, expected price, costs, and maximum offer in a spreadsheet or notebook. Record the date because prices change. Your notes also help you recognize patterns when you research the same category later.

Use the middle-sale anchor when results vary widely. For example, if close sales appear at $42, $48, $50, $55, and $78, do not price from the $78 result without checking why it sold higher. The $48 - $55 group suggests a realistic base. The $78 item may have included a battery, factory packaging, or a rare accessory.

A sold comp does not need to match every detail, but every difference needs a dollar value or a clear adjustment. A missing remote may lower the price of an appliance. A missing charger may reduce the value of a power tool and make local pickup more attractive. A scratched tabletop may matter less than a missing drawer. Write down these adjustments instead of making them from memory.

Applying the Loop Before a Purchase

Tanya finds a used countertop ice maker at a local sale. The label shows the model number, and the seller says it works. Tanya wants to know whether the $35 asking price leaves enough room for profit.

1. Identify the item. She records the brand, model number, included scoop, power cord, and visible condition. The machine has light scratches but no cracked plastic.

2. Search sold comps. She searches the model number on eBay and reviews completed sales. Her close matches sold for $62, $68, $70, $75, and $89. The $89 sale included the original box and extra accessories, so she does not use it as her main anchor.

3. Choose the expected selling price. Tanya uses $70 as the expected sale price because several working examples cluster near that amount. She plans to list at $79.99 to allow room for offers, but she bases the purchase decision on $70, not the higher listing price.

4. Estimate selling costs. She expects a $12 platform fee, $8 for cleaning and packing materials, and $18 for shipping. She also reserves $5 for a replacement water filter if testing shows that it needs one. Her expected costs total $43 before purchase.

5. Set the maximum purchase price. Tanya wants at least $20 profit. She subtracts $43 in costs and $20 in profit from the $70 expected sale price:

$70 − $43 − $20 = $7 maximum purchase price

The $35 asking price does not work for an online sale. Tanya could consider the item only if she can sell it locally with no shipping and lower fees. If local costs total $10 instead, the calculation changes:

$70 − $10 − $20 = $40 maximum local purchase price

6. Make the decision. Tanya passes on the item at $35 for an online sale, or buys it locally only after testing it and confirming that the buyer demand supports a $70 price. She avoids paying for a sale that looks profitable only before expenses.

Quick checklist

• Find the exact brand and model. - Search completed or sold listings, not just active listings. - Compare condition, accessories, quantity, and working status. - Ignore unusual high sales until you understand them. - Choose a realistic expected selling price. - Subtract fees, shipping, supplies, repairs, and desired profit. - Write down your maximum purchase price before negotiating. - Recheck the comps if the item has missing parts or damage. - Record the research date and search terms.

This process also works for local pricing. If you find only online sales, adjust for shipping and platform fees before comparing them with a local pickup price. A buyer may pay $70 online because the item arrives at the door, but offer $50 locally because they must drive, inspect it, and carry it home. Sold comps guide the decision; they do not replace judgment about the selling channel.

Mistakes That Distort Your Price

Using active listings as proof of value

Active listings show unsold inventory. A seller may ask $120 for a used office chair while completed sales show buyers paying $65 to $80.

Do this: Filter for sold or completed listings and use several close matches.

Not this: Treat the highest current asking price as the item’s market value.

If a platform does not show reliable sold data, use completed sales from another marketplace and adjust for local pickup, shipping, fees, and buyer demand.

Comparing the wrong condition

A tested, clean appliance with all accessories can sell very differently from an untested unit sold for parts. New sellers often search the product name, see a high number, and overlook the condition line.

Do this: Match working status, completeness, cosmetic condition, and included accessories. Label each comp as close, usable, or poor.

Not this: Use a boxed, complete example to price an incomplete or untested item.

When no exact match exists, start with the closest lower-value comparison and add value only for features you can verify. Do not add value for a feature that you assume works.

Ignoring the difference between sale price and net proceeds

A $70 sale does not put $70 in your pocket. Fees, shipping, packaging, returns, cleaning, and repair parts reduce the amount available for profit.

Do this: Run the maximum-purchase calculation before you negotiate. Keep a separate line for every known cost.

Not this: Subtract only the purchase price from the expected sale price.

Take one item from your home, a thrift store, or a local listing today and complete the Comp-First Loop on paper. Save five close sold comps, choose your middle-sale anchor, calculate the maximum purchase price, and write down why each comp matches or differs. That habit gives you a pricing foundation you can carry into every category, every marketplace, and every purchase decision ahead.

End of chapter one. 7 more chapters in the full book.