I go back and fourth with games. I have 2 certain keepers that never leave Tron and LOTR. However I go up and down in my collection and keep most games for less than a year. If I'm not in love with a title then it will be sold or traded within a year. It really just depends on how much room I currently have, is there another pin I want, and do I need money? Really I like to keep a game for at least 3 months to get a full feel for the game. Some people would say that I change games too much but I like to switch it up and have variety.