My game play habits have shifted from PC to console back to PC again for my entire life. When I was a wee lad my parents bought us a Commodore 64 then a few Christmases later, our first Nintendo. 4-5 years ago after primarally playing PC games for years I picked up a Wii. A year or so later I nabbed a PS3 and I was primarally a console player up till recently. Fast forward to now and I am shifting back to the PC starting with the release of Lord of the Rings Online Free to Play and then Diablo 3 and now the amazing Steam sale.
Ive shifted to now 90% of my gaming happens the PC and I only go to the consoles occasionally or for BluRay or Netflix....

Same here. I didn't get in on the last generation until late in the cycle. I was pretty much PC only until grabbing a PS1 for the Final Fantasy games, then PC only until I played a friend's copy of Guitar Hero. From then on I had a lot of catching up to do on the PS2 and GameCube and then that spilled into current gen. But now that we are toward the end of this console cycle, I find that my very modest PC plays all the games I care about, often better, and almost always prettier. It is quite amazing that medium quality Skyrim is slightly better than console Skyrim (short of some pop-in).
This will probably be where I stay until the first or second price drop of the next console generation. The only caveat is exclusives. As long as Nintendo is in the hardware market, the next Mario or Zelda isnt going to show up on PC.
From what I have seen of the next gen consoles, the Wii U seems interesting but nothing gnaws at me to get it. Perhaps the PS4 or XBox 3 would but we still don't know what those will be. If they both have BluRay it will be a tough choice but I still prefer to not pay for an Online service.
Awesome! The first computer I had was a Commodore 128D (backwards compatible with the C64). I played around with that until we got out first PC in '95. Back in those days, I was predominately a handheld gamer (I had a Gameboy and a Sega GameGear) and then a PC Gamer (Doom II, Wolfenstein, and Command & Conquer). I think it wasn't until I went to college that I became more of a console gamer, which I am now. Lately, I've gone back and forth between handheld, PC, and gaming with Pokemon X, Terraria, and Batman: Arkham City Origins (to name the most recent games I've played).