DeadlyYellow: As technology evolves, so will games. New things are constantly being tried, things are always being improved. Isn't this what we want in the industry? I much prefer innovation and progress over stagnancy for the sake of people who can't afford to update. If you are on an "old rig", you won't be able to play new games. It's like complaining that you can't play Gears of War on your Sega Genesis.
As an FYI though, I did get my PC 2 years ago, and it works fine. I've only had to get more RAM so far, which isn't that costly. There isn't a need to "constantly" update. I have a vid card and processor that were top of the line 2 years ago and they're still damn good. If you invest now, you will get your money's worth. A new PC will last a pretty long time.