No offense Libra, but much of your reasoning seems like desperate rationalization, like you're having a twinge of buyer's remorse and you're trying to pull together reasons to justify to your mind why your choice was the right one. However, like I said before, to each their own. You like what you like, and really, I don't care why.
Just for the sake of clarification, the Wii was never meant to be powerhouse. It was intended to be an inexpensive console, and a means with which to deliver new gameplay experiences to a broader market than that of your traditional console. It's succeeding perfectly fine with what it set out to do, and the only people who are slamming it for not offering all the new graphical bells and whistles are those who have utterly missed the point of what Nintendo was on about with the Wii.
As far as the library goes, it's all subjective.
