A sequel would probably perform like Shaun White: World Stage. It would underperform because those that already own the game would scratch their heads at the thought of buying it over again and those that don't have it would rather buy the original for cheaper.
Of course, I do suspect World Stage will eventually see a sizable sales increase, kind of like Konomi's Dance Dance Revolution sequel.
Actually, I think there are quite few examples of Wii games that offer specific experiences, seeing sequels suffer becasue their predecessors are still selling well. Just Dance would definitely fit that mold.
I'm a mod, come to me if there's mod'n to do.
Chrizum is the best thing to happen to the internet, Period.
Serves me right for challenging his sales predictions!
Bet with dsisister44: Red Steel 2 will sell 1 million within it's first 365 days of sales.