I think I'll be a die-hard PC guy all the way... The last console I bought was the Gamecube, for my wife. (SCOOORE!!! on having wives that game! Alot of my friends are jealous, lol. They just get yelled at for "playing that stupid thing too much")
My wife enjoys shooters more than anything. I just gifted her HL2 and Episode 1 over Steam when I got the orange box.
I have lots of reasons, but one of the main ones is I collect flight sims... And finding even a semi-serious sim for consoles is impossible. I remember seeing comments on console "sims" and cringing at all the noob comments like "It's just like real life!" and "It's so realistic!!!" People are happy with arcade games.
Flight sims have been slowly dying out for years, anyway. I don't see a market for them on consoles... But if I were to buy one, I'd have to go with the wii... I know... I surprised myself, too. I respect Nintendo for remembering the #1 reason for buying a console in the first place- FUN! I have a DS, and I have to say it's a million times better than the PSP. It may not have the graphics, but playing multiplayer Mario Kart wherever you want is great! The battery life is excellent, too.
This past 2 years has changed my mind on everything- I used to be pro Intel, Nvidia, and MS Xbox, but now I'm AMD, ATI, and Nintendo until I see reason to change back.