For $500 you can get a PC that will run games better than a X360 ever could. Add to the fact that PC gaming is cheaper because PC games are cheaper and have mods, and you don't have to pay to play online (unlike X360). Also PC has far more and better games than Xbox 360.
mabe, but how much better? can it play Crisis at max rez with everything on? i doubt it. So yea I could spend 500 dollars and have a good PC bearly more powerful than my 360 and yes free online, mods and cheaper games but can I buy used PC games? can I sell used PC games? no, at least not were I am. I buy new on very few games and used I can get NBA2K7 for 6 bucks or mass effect for 16 bucks Can you? I guess all I am saying is if you have a good running PC and can play those games then great more power to you but I would have to put down an other 500 dollars to have a PC that in 2 years I would have to put down another 200 dollars to keep it up to date. thats 100 dollars a year so live is worth it.