According to Go Nintendo, rumor is that EB Games/GameStop list 4 SKU's for Guitar Hero III. The XBox 360, PS2, and PS3 versions are listed as $99.99 and the Wii version is listed for $10 cheaper, at $89.99. Go Nintendo guesses that the reason is because the Wii guitar probably isn't a full guitar but an attachment for the Wii Remote, and I agree with them. Only time will tell. I'm definitely going to pick this game up.