IMO Little Big Planet will sell 5-10 mil. Of course a big intro factor is obveously going to be the neccesity of a huge marketing campaign. But if this game is indeed going to be as monumentally sensational as people are thinking the biggest factor in selling this game can be summed up in three words "Word Of Mouth". The first people experience the game, tell all their friends who knows this game could still be selling strong persay months after release. I believe the legs of this game will be collasal. Little Big Planet could indeed be the playstation brands next Grand Turismo or Final Fantasy in terms of success. After all Sony intends to make Sackboy and Little Big Planet the new face of the Playstation brand. Who the hell knows whats going to happen, I for one am extremely curious.