You could argue about the userbase all you want, however truely excellent games have the opportunity to breach the normal constraints of their particular genres and cater to a wide variety of people who would not have otherwise considered the game. Pretty much any truely excellent game which has qualities far above and beyond the norm show this characteristic. If you consider the absolute top selling games, you don't consider Mario for example as made up of the entire audience of people who like platformers, you couldn't say the genre is that big because no other platformer reaches such epic heights in sales. Therefore you can't say that a game has to rely on the userbases own interests, the problem here is that 3rd parties have not created these truely excellent titles for the Wii and have instead relied on some mediocre standard level of support for mediocre games.
Tease.
