I disagree. If you are gaming at 1920x1080 why do you need to spend $500 on a GTX580? Unless you make so much $$ that you simply don't care, then buying the fastest videocard doesn't make any sense.
I dunno man I think it makes sense! I like the AA on at that res and the 580 is clearly leading with AA on at that res.
I was on AMD for many years, the 9800Pro was the successor to my Voodoo 5 5500 and this is first Nvidia card I'll ever own.
I got tired of waiting, had money set aside to reward myself for a promotion this summer - and sitting there with money in the bank waiting for this shoe to drop was painful.
At the end of the day I wanted single card after bad experiences with crossfire, I wanted great 19x12 performance, and maybe just to see if the grass was greener on the other side..
This one 'll last me a while but I must say I'm very happy with the state of competition and if I wasn't sitting prettier this year the 6950 or 6970 would have been it for sure.