The single biggest mistake new resellers make is pricing off asking prices — what other people hope to get — instead of sold prices, what items actually change hands for. Asking prices are a wish. Sold prices are the market. Here's how to price used items for resale without guessing, and how to turn that into the most you should ever pay.
Start with sold comps, not listings
A "comp" is a comparable item that recently sold. On eBay, filter search results to Sold items and you'll see real transaction prices with dates. That's your ground truth. A row of active listings at $200 means nothing if the sold ones all went for $120.
When you pull comps, match on the things that move price:
- Exact model / variant — "the blender" isn't a comp; "Vitamix 5200" is.
- Condition — new-in-box, used-working, and for-parts are three different markets. Compare like to like.
- Completeness — with the original accessories, box, or attachments vs. without.
- Recency — the last 30–90 days. Prices drift; a comp from two years ago is a rumor.
Use the median, and ignore the outliers
Once you have 5–10 sold comps, take the median (the middle value), not the average. One collector who overpaid and one desperate fire-sale shouldn't swing your number. The median is the honest center of what the item really sells for.
If sold prices are $95, $110, $120, $125, and $240, your resale anchor is ~$120 — not the $138 average that the one $240 outlier inflates.
Subtract the costs that are easy to forget
Your expected resale value is not your profit. Before you decide what to pay, subtract everything between buying and cashing out:
- Selling fees — roughly 10–13% on eBay, similar on most shipped marketplaces. Local cash sales have none.
- Shipping — if you ship it, that's often $10–$25 out of your pocket for anything sizeable.
- Cleaning / minor repair — even an hour of cleanup is a cost.
- Your time — pickup, listing, and the handoff. This is the one people skip, and it's the one that decides whether flipping is actually worth it.
Work backward to your max buy price
Now flip the math. If the median resale is $120, fees and shipping run $20, cleanup is trivial, and you want at least $40 for your trouble, then the most you should pay is about $60. That's your ceiling. Write it down before you message the seller, and don't move off it because the item looks nice in person — that's how curb fever eats your margin.
A max-buy price also makes negotiating easy: you're not haggling emotionally, you're just deciding whether the seller will meet a number you already know works.
Price your own listing to actually sell
When you resell, price near the sold-comp median — maybe slightly under if you want it gone fast, slightly over if you're patient and the item is scarce. Overpricing to "leave room to negotiate" mostly just leaves your item sitting. Days-to-sell is a cost too: capital tied up in unsold inventory can't buy the next flip.
Skip the manual comp-pulling
Pulling sold comps and doing this math on every listing is slow, and slow is how good deals get away. Worth Radar does it for you: it checks real sold comps automatically, shows you how far the asking price sits below the sold median ("32% below sold comps"), and computes your max-buy price and expected profit-per-hour — so the pricing decision is made before you even message the seller.