Rivers Cuomo, the front man for the band Weezer, suggests that playing rhythm games is a waste of time. Mind you, Weezer has multiple tracks on both Guitar Hero and Rock Band, and is paid to have their songs licensed. Rivers was quoted as saying
I don't get those games at allto Joystick
I mean, I haven’t tried them. But they must be fun because people love them. But, to me, it seems like if you’re going to put that much effort into playing something, you should just play a real instrument.