@Laoldar, The only real evidence I have is anecdotal: everyone I know who bought Guitar Hero 2 before Guitar Hero went out to buy the original game. I'm talking a time span of a few WEEKS, not six months. I think you're underestimating the appeal of more, different, recognizable songs to people new to the franchise. Someone new to the franchise would look back on older games and go, "Oh man, I'd LOVE to play Freebird!". I know that's what happened with everyone I've talked to; they see a song or 3 they want on a previous version and pick it up. It's not the most irrefutable logic, granted.
There's also a few other things to consider. 1) If GH3 totally sucks, which it shouldn't, people might see online how much people love GH2 and pick it up. 2) There was a price break for GH, I can't imagine there won't be one at some point for GH2. 3) Places like amazon.com will throw out the old "buy this with Guitar Hero 2 and save $1.37!", people will buy it that way.
Like I said, I don't have any solid, numbers based reasoning as to why I'm taking the position I am, I just think it will, based on the aforementioned reasons. I'd be really really surprised if this game doesn't crack 2 million at some point.
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The only real evidence I have is anecdotal: everyone I know who bought Guitar Hero 2 before Guitar Hero went out to buy the original game. I'm talking a time span of a few WEEKS, not six months. I think you're underestimating the appeal of more, different, recognizable songs to people new to the franchise. Someone new to the franchise would look back on older games and go, "Oh man, I'd LOVE to play Freebird!". I know that's what happened with everyone I've talked to; they see a song or 3 they want on a previous version and pick it up. It's not the most irrefutable logic, granted.
There's also a few other things to consider. 1) If GH3 totally sucks, which it shouldn't, people might see online how much people love GH2 and pick it up. 2) There was a price break for GH, I can't imagine there won't be one at some point for GH2. 3) Places like amazon.com will throw out the old "buy this with Guitar Hero 2 and save $1.37!", people will buy it that way.
Like I said, I don't have any solid, numbers based reasoning as to why I'm taking the position I am, I just think it will, based on the aforementioned reasons. I'd be really really surprised if this game doesn't crack 2 million at some point.
Oh, and also a gut feeling. :)