You do understand that pixel pitch isn't everything? Judging from your response, I see that you do not.
Let me remind you what ISF says about the most important aspects of picture quality (in order) and I believe that that they are a "little" more knowledgeable than you. ;)
1) contrast ratio
2) color saturation
3) color accuracy
4) resolution
But nevermind, go for it, buy 2560x1600 monitor (hell, why not try finding one of those 3,840 x 2,400 ones :ROTF:) and throw a grand+ in video cards. And you still won't have satisfactory perfomance in Crysis/Stalker on very high/beyond very high + MSAA + transparency AA + Vsync + TB. :up: