Guitar Hero III Legends of Rock ONLY $8.85 (Was $29.99) This post may contain affiliate links. Please see the full disclosure policy here. Posted on March 8, 2012 Written by Mary Leave a Comment Amazon has Guitar Hero III: Legends of Rock – for the Xbox 360 for ONLY $8.85 (was $29.99)! Great price! Don’t wait too long as the Amazon prices change constantly!