Why Halo Reach will outsell Halo 3

[dsage01]

well i like your reason why it will outsell halo 3 but with the new halo coming up next year i don't think so.

btw halo 3 had 3 years to itself by 2012 ps3 and xbox 360 games won't be able to really sell.

so i'm gonna have to say 10-10.5 million max