Like I stated before, I hate buying a PC game #1 because I'm not always sure I can run it. I bought Dungeon Lords for $10 US a couple months ago, and it doesn't work, but Rainbow Six works fine, which IMHO has much better graphics, and #2 you can't return games for the PC because of burning. A lot of places still let you return console games if they suck.
Also, I have an xbox360, and I KNOW that if I buy a 360 game, it'll run. It might be a crappy game, but it'll work if I buy it AND I don't have to buy a graphics card every year or two to play the newest games.
Is PC gaming dying? Yes. I think so. BUT many games (classics like on Abandonia

) will be embalmed and dug up many many years from now for great games. Master of Magic being one that I have played probably 30+ hours in the last 3 weeks!