My Wii has sat in the closet since about 6 months after launch. I really should just give it to some needy child rather than leave it there because lord knows I'm not going to play it.
For what its worth that's just a personal thing. I totally get that there are games on it that are worth playing. For me and my personal tastes, there simply aren't enough to bother with the hassle of hooking it up again. I debated getting back into the Wii after the motion plus came out, but it seems like the dev support for that has died.
Not every system has to be for me and since there are plenty of other systems (360,PS 3, PC), I'm not one of those people who is always angry that their system is a more casual system now.