Halo ODST is still selling 12k a week pre-bundle. So over the course of the next few years it probably would have still outsold Halo 1 on the original XBox. (6.43m versus 4.70m ) not bad for what most called a glorified expansion pack at $60. Now that It's bundled It's bound to sell even more. Halo ODST didn't have a giant amount of hype around it, and again most saw it as a expansion.
Reach is a brand new game with a brand new engine. It will have a stupid amount of hype, be the next game at MLG, and feature a new flavor with Mountain Dew :)
It's just that simple.







