Quoted from mbeardsley:A-list games are ones I own.
B-list games are ones I want.
C-list games are ones I don't want.
Actually . . .
A-list are games I own, especially the ones I want to sell (I will demand the highest possible price regardless of condition with zero room to negotiate)
C-list are games someone else owns and I want to buy (I will offer a lowest possible price, point out every minor flaw, and beat you down until you succumb to my offer)
B-list games are everything else