Spider-Man 3 for the Wii isnt selling well because the controls make fighting too hard. Spider-Man is/was a hard enough game with a regular controller (Remember Spider-Man 2, fighting those Mechs?). Wii owners arent exactly looking for a challenge. Devs and reviewers need to realize that just because you have the wiimote doesnt mean you need to use it for everything. Super Paper Mario is a good example. The only thing you use the wiimote for (that couldnt be on a normal controller) is pointing at the screen and some style thing i havnt got to yet (im 1/3 through). I'm perfectly happy attacking with buttons. Put the wii motions on things that make sense. Attacking? Really? You think we want to be swiping our hands 24/7?
I also think that the "makeup" of the Wii gaming base would suprise a lot of people. Its too bad no one does stats on that type of thing.