I hear your arguements and I still say $500 is way too much to pay for a video card. Put it this way, I've got a 9800 "Pro" that cost me $250 to the door and it plays nearly every game today flawlessly. What I have to ask myself is are there any cards out there that are $500 better than mine? Is it worth $500 just to play Doom3 and Far Cry faster? For me the answer is absolutely not.
It's more like a 250 dollars better than yours, and from what i can tell, these new cards are basically twice as good as what you paid for yours, and i'm talking like the GT version 6800 and such, so basically, yeah they are worth it. But hey, as the guy said, to each his own!