i take it thats USD?
honestly ive been using ATI/AMD as long as i could remember. never really had to look at geforce.. but maybe cause of my budget.
it all comes down to this: everyone can make sacrifices to come up with a better budget. so do u use the computer enough to justify that? moreover, do u play intensive games and have the monitor to utilize powerful cards?
2 weeks ago i dropped $650 on a gfx card. thats pretty much 75% of what i spent in total in combination of the cards i bought in my life.
i have to say i have no regrets. i dont think twice about setting things on ultra.