What about Metroid Prime 3, Muramasa, Monster hunter etc?
Metroid Corruption was the second game I owned for Wii, and is now one of the three games I own that I never beat, one of which I only just started anyways. I absolutely hate it and think it is extremely boring, one of the worst in the Metroid series.
Muramasa is lame hack n slash crap that was already confirmed to be coming to HD consoles later on anyways, so why play it on weaker hardware with less features? I do not even like the gameplay and rather play the companies better games, like Odin Sphere and Princess Crown.
Never liked Monster Hunter, either. Wii's online stuff sucks beyond reason and I do not know anyone who is even interested in the game and do not want to make Monster Hunter-only friends.
For other games like Epic Mickey, I can always play them on a friends console or something if I really need to. For instance I beat Uncharted twice and never owned the console, so I am not too worried at all.