If you're talking about the first Uncharted, sure, since there was OBVIOUSLY no multiplayer. However, I'm assuming you haven't played the Unchatrted 2 beta, the online will DEFINITELY be one of it's selling points.
Oh I think you misunderstood me. I know there is multiplayer. I guess what I'm saying is that most HD titles that sell as fast as this thread is predicting have some sort of mass multiplayer appeal. KZ2, Halo, Resistance, GoW, etc etc, all promise highly competitive Player vs Player gaming. I'm going to be very careful how I word this. Uncharted 2's multiplayer seems like a ton of fun, but it isn't something thats extremely marketable, so to the casual consumer, its more of a bonus than a selling point.
I could be wrong, and I hope I am, because Uncharted was one of those games I wish went multiplatform, but I just don't see the right amount of advertising to give this game enough legs to hit 2 million in two months.