Ssenkahdavic on 06 March 2010
I dont think there is a peak to sales of any franchise and that sequels always have a good chance of outselling their predecessors.
In this case; being Bungies last Halo game, having the ODST demo and with how well a "add-on" sold, Reach has a damn good chance of outselling Halo 3 (and I think even MW2, which will outsell Halo 3 at one point).
This should be huge for the 360.
