I honestly have trouble with that as well, not with "new games" as in PS3 or Wii or anything, but "new to me" I recently found Chu Chu Rocket on dreamcast sealed at a thrift store and decided not open it, I also have a few sealed Game Gear games that I was planning on opening, but it's hard sometimes, I mean if its something I really wanna play I'd rather buy an open complete copy online or something, it's cheaper and you dont get that guilt factor