The only change this year is that the Wii version pricing has been increased. Guitar Hero has been one of the only successful third party franchises on the Wii, so they’re not going to pass up the opportunity to make some extra cash.
Game Only (Xbox 360, PS3, Wii): $59.99
Game Only (PS2): $39.99
Bundle (Xbox 360, PS3, Wii): $99.99