I think that LittleBigPlanet looks to be a pretty fun game overall. Does it look as fun as, say, a Mario platformer to me? No, but the physics of the game make it feel a lot more lively than traditional platformers. The graphics definitely are good looking. If it was on Wii, I would buy it. Unfortunately, the PS3 price tag almost makes it intangible for me. With the Xbox 360, if I see a good game for the system, I would actually consider buying a system some day. With the PS3, the thought doesn't enter my mind. The price is so unrealistic that I don't even consider a purchase. Even if I did have a job, the price would be a major deterrent.
Moral of the story? Expensive consoles mean less buyers, which ultimately means the hard work of game developers reaches a smaller audience. It is a lose-lose situation.