Value your own item before receiving offers

Before negotiating, build an independent valuation of your item.

Consider:

• model and version;
• condition;
• originality;
• modifications;
• accessories;
• comparables;
• demand;
• any costs needed before resale.

Write down a realistic range and, if useful, a minimum threshold.

Do not suddenly increase your item’s value merely because the other party is using a high valuation. It is more useful to bring both products back to comparable market references.