Me too. I like to see it not only be a nice online library to put my games on, but also allow me to search it like a general game library and possibly link me to other CAG's that may have the game I'm searching for sale or trade.
Maybe other things like average trade-in values and a rarity rating on them as well.
Is cheapassgamer going to have its own game database, or is it going to try to use one that's already out there? Wikipedia already has a lot of game lists... But there's also http://www.freebase.com/view/cvg - it's a full user-edited video game database with an API for other sites to be able to use their data....