stupid idea.
first off wiiware games have a limit of 40mb. second casuals are more likely to not have a internet connection. third there will be some good "core" games coming to wiiware like the one talked about today from the former naughty dog guys.
most importantly, why the hell do you even care if there are 100 billion casual game out there? if you don't want it don't buy it. Is your gaming experience cheapened because someone else is playing a game you don't like? Just play the games you want to play and give up your stupid elitist attitude about what makes a "good" game.