I bought a Kobe /25 for $250, listed it months later for a “make me sell it” price of $2,500, and figured nobody would bite. Then a $1,999 offer showed up. Sometimes with rare cards, it only takes one buyer.

How do you price a sports card when there are no direct comps? I recently had to figure that out with a true 1/1—and then decide whether to push for more or take the offer in front of me.