Halo 3 Vs. Gears of War Vs. Metroid Prime 3 Vs. Resistance: Fall of Man

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Well, seeing that Halo sold about 5 million, and Halo sold about 8 million, I wouldn't be surprised if Halo 3 sold 10 or 11 million. But seeing that there are only about 10 million Xbox 360's out today, it may take a while after the release of Halo 3 for a number that big to be achieved.