I buy games I like to play, and try not to overpay. If I stop enjoying the game, I sell it (WOZECLE will be the next game out). Try not to over pay, make exceptions for games you really want, sell for a fair price that the current market dictates. Sometimes you make a few hundred, sometimes you lose a few hundred, sometimes you break even. But you got to play and enjoy the game while you had it. Overall try to break even, and how many hobbies let you say that?