No.
Halo ODST is more or less a game most people will buy if they already have a 360 and love Halo. Most people that wanted Halo 3 already got a 360.
I think Halo Reach has a slight chance at being a system seller if Bungie can prove It's better then Halo 3 and has a lot more to offer. But that is yet to be seen.
(I love Halo btw, even love Halo Wars)
It's just that simple.







