I think it's a bit of a wildcard. Because of Halo 2 and other big November games, and because the hype for the game itself just doesn't seem as high (at least from what I can gather), I wonder if it'll sell at a lower rate than previous GTA games.
But then again, it might totally surprise me and sell even better than the other GTA games.
I was not so sure at first, but after today it will by the end of the hollidays sell faster then vice city. We are being told its the biggest launch the company (being gamestop) has done.. that must mean something