A Secondhand Offer Math Checklist
A good secondhand offer is not just a lower number. It is a quick sanity check on comps, costs, risk, and whether the deal still makes sense if the seller says yes.
Start with sold comps
Asking prices are useful context, but sold comps are the anchor. A quick offer check should separate what sellers want from what buyers actually paid, then adjust for condition, bundles, missing parts, and local demand.
Price the friction
A cheap item can become expensive once pickup time, platform fees, shipping, repair parts, cleaning, storage, and relisting effort are included. The offer should leave room for those costs before profit is counted.
Set the walk-away number
The walk-away price protects the buyer from negotiating against themselves. If the offer only works when every assumption goes right, passing is often the cleanest decision.