I think the problem is that guitar hero has changed. If the first guitar hero had the budget it had now, they wouldn't have even considered licensing lame modest mouse songs and crap like that. They would've gotten songs like "Stairway to heaven", "Master of Puppets", "Freebird", "Aces High" and "Electric Eye." The original GH setlist was comprised of Iconic classic rock songs and some stuff by smaller/indy bands that was obviously the result of budget restrictions, but more importantly it was (mostly) stuff you would want to play on the guitar. Why? Because the concept was "play a game that makes you feel like a rock star." hence the music was stuff you would correlate with "rock star." Now they want to appeal to a broader audience, and hence the setlist varies from classic rock and metal in order to be more mainstream.