There's a lot of games that came out within the last year, but not too recently that they usually sell in the $40-45 range on sale for $15 but you have to go in, can't buy online and have it shipped nor buy online and have it held.

I've been holding out to get FFX+X2 and GOW3 Remaster for like $20-ish used as I had them in the past, but I got both for $15/ea so score on that. There's a good list of games there that are like that and not marked in the glass cases, maybe best to check their website or using one of those black friday sale price sniffer/narc sites that point stuff out.