I was expecting 400k first week, so it did do better than I thought.
I see at least 3-4 million long term.
People keep comparing it's first week sales to hardcore shooters. Platform games, and casual games in general, have much longer legs that shooters. I expect the new Banjo game to have a weak opening and sell well over the long term.
Ratchet had 131k first weeks sales, and is currently at 10x that.
SMG sold 1M first week, and is now 7x first week sales.
Halo3, GTA4 & MGS4 are around twice their week one sales.







