Right now, my gaming "conduits" are 3DS, DS, Wii, and PC, in order of most played to least. My PC usage will tick up slightly with a Steam sale (like now), but not much.
But I agree with a lot that has been said in this thread-- it just makes more sense to go WiiU/PC, as opposed to WiiU/Whatever HD Console, because most of the interesting Western games will make it onto PC AND other consoles, but then you can at least justify spending some money on your PC because in my case (though I'm sure not solely my case) you use your PC for work. I have a home business that I use my PC for, where I'm running tons of different programs at the same time, with a lot of CPU/RAM heavy stuff (like every single Office program, a couple PDF files, Skype, and Firefox is a HOG). You can justify spending some more money on a quad core CPU and 8 gigs of ram. And at that point, throwing in middle to high range video card in the $100 to $150 range is not a huge thing. On top of that, figure in the amount of money you save on the cost of games (cheaper on PC via Steam) and not paying for 360 Gold, then it works out pretty well.