??? Do games somehow have a date of expiry? Its one of the best games around. It has been one of the best games 2007 and its one of the best games 2008. Its definitely better than 95% of all games due christmas 2008. Its better than Resistance2 its better than Gears2 its better than (didn't find a Nintendo game that is even comparable)
It won't have the same sales as on 360 that is correct. But it still will be one of the best games in the PS3 library.