I am trying to start a real, in-life, rock and roll band. I know how to play guitar, but I don't have one. I really want this game, but I don't got a PS3. Should I spend $500 on a PS3, and then spend $200 on the game? Or should I just spend roughly $200 on a real guitar? My whole family wants the game, none of my friend have a PS3 or a XBox 360, and I have no idea what to do. Please help me.