Guitar Hero is definetly a must buy. It's well worth the $70, and if you are hyped up about the first game, then you'll be even more excited about the second game coming in November, which has new multiplayer modes and also ups the difficulty a bit. (Guitar Hero 1's expert mode is Guitar Hero 2's hard mode.) I've pretty much played all I can of the game ever since I got it as an x-mas present, only stuck on Bark at the Moon and Cowboys From Hell on Expert mode, but I still go back to it at least once a week to play random songs.