Heavy Rain isn't an "ammo" title. Much as it's one of my most anticipated PS3 titles, it is fairly niche in terms of it's gameplay.
GT5 is huge. It's absolutely massive. But GoW3 also isn't a massive system seller I don't think. Though it is a big title. And again, a personally well anticipated one.
Uncharted and Rachet won't push systems, just as GeoW 2 didn't appear to push systems. We'll have to wait and see for Killzone 2, but you'd think that without a price drop there isn't much it can do. Everyone that wants a shooter probably has an HD console by now.
So the question is, even with those titles does the PS3 have enough ammo?







