The Wii is not cutting it for me, plain and simple. There are games on the horizon I'm looking forward to but they're too infrequent. The third party support is crap and is not going to change. Nintendo's first party releases are now split between the new market and the old so from my perspective their output is decreased. And realistically I just don't seem to be a priority to them. They don't care if I'm satisfied or not. They're making money hand over fist so they're not going to change anything. I feel like they're taking my support for granted. But I'll still have my Wii and will buy the titles that do interest me. Next gen is up in the air though. Right now I'd say they've lost me for next gen if they maintain the status quo.
And that is the reason why I just have never gotten behind the Wii. I don't even feel compelled to buy games for it. It seems to have the same problems as the GCN (no third party support and long game droughts) but there is also something about it that seems sloppy from Nintendo's standpoint. Maybe it's just how there is a constant lack of quality titles or maybe because I stuck with them during the Cube days (some very dark gaming days) and nothing about GCN quality games being repackaged with new controls excites me, I don't know it's something that's bothered me all generation.
As far as the PS3 Slim, I'm not a fan of the new design but it saves space so it is effective. Too bad there's just not much on the PS3 that interests me aside from MGS4 and having a Blu-Ray player. There's just not enough games I like to justify buying one when I own a 360. I think someone mentioned the price earlier and I think that killed them because if you look at it from a features and durability standpoint it is better than the 360 but the price and initial inferior lineup gave the 360 the edge (and was part of my reason for buying one).