I know many people would say it is not good that so many defining titles for the system were 1st party but I think that the quality on some of the games you listed, like Skyward Sword, is so high that it does not matter.
This system will be remembered long after PS360 are dead and gone. A story of David defeats two Goliaths. Wii defined a generation of gamers and non-gamers. To deny this is simplistic ignorance. This console will symbolize Nintendo's immortality and whether this generation of "core gamers" believe it, will be irrelevant.
I'll keep mine active. I still have most of my Gamecube games and my Gamecube is a little shaky. Understandable considering its been dropped a few times. lol