Yeah, PC gaming is definately The most expensive gaming platform nowadays, and people generally pay for it to get 2 things:

- Mouse + Keyboard control scheme
- Ability to multitask on the same screen + keyboard with your games.

I don't think it's worth it to keep up with PC upgrades anymore. I used to throw money down that drain..

PS: I don't buy the "I hate x because I can't trial it first, thus I pirate stuffs off torrent\blockbuster\friends" argument. Games aren't the only medium without a consistent "Try before you buy" scheme, and there are enough means to learn about the contents without pirating it: all sorts of reviews from print media\net\forums\friends. There's also a decent second-hand market for games, in case you don't want it anymore too.