Agreed, 2 million is highly unlikely. Yet I think 1 million is still a touch low. It may be a re-release, but it's not a port. There's new features and new songs that make it measurably better (read: feature-rich) than the PS2 version.
Lets be realistic here. This is a re-release of a game a LOT of people already have. Don't get me wrong, i've been holding out for the 360 version myself and the downloadable content seems great, but 2 million when it costs $80+ per copy? I highly doubt it.
I think the mere presence of downloadable content is going to help sales. Once players master everything on the disk, there's more to download to keep 'em playing.
According to the March issue of OXM, Steve Vai's guitar-charged "Halo Theme (Mjolnir Mix)" could be a downloadable track for Guitar Hero II. Heck, if Spartan-458 can jiggle in Dead or Alive 4, then Halo 2's theme can be strummed along to in the GHII encore. This is one Halo rumor that smells probable; if not simply because it screams, "impulse buy!"
Assuming we'd have to pay to play, the Halo theme has the potential to pocket as many micropayments as just about any licensed track imaginable. This is the Xbox 360 venue, folks, where Master Chief is as big as any 'Rock God' -- dead or alive.
Surprise! Not everyone has a PS2 has gotten this game, and with all the hype and proven gameplay many Xbox360 owners would be highly tempted for the XBox Live features, namely online play and downloadable songs.
There's also 10 new songs, and there's a reason why DDR spawns endless sequels: People just want more!
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