Everyone makes perfect sense but!
I signed up for this one reply. I am currently doing a research on user mentality and product acknowledgement.
1st of all everyone is right! that 30% difference is a no brainer or you might want to consider looking at more stores before purchasing.
2nd AMD = Raw Processing Power NVidia = Pure Gaming Pleasure
2nd
(i) Do you see yourself using Adobe suites? PS, PP, AE, ILS, etc etc? yes? AMD!
(ii) Do you see yourself gaming and purely for entertainment? yes? NVIDIA!
(iii) Do you like effects and such? yes? PHYSX
(iv) Are you comfortable with MSI AB? yes? AMD! why? Look at the numbers (min/max)
(v) There's always SLI / Crossfire / Phys X dedicated cards.
(vi) Bang for buck? full stop.... AMD
(vii) AMD is getting a good amount of game sponsorships... NVidia still dominates that sector.
3rd seriously listen to everyone about the 30% price or maybe search somewhere else. the performance gains aren't Hz per $. Just decide which one of the scales are you on? computing power and a more brilliant colour pallet or pure gaming and entertainment.
4th
Lastly but most importantly.
3D?
HD3D, Stereoscopic 3D, Forced 3D........ which do you want? (read up on it)
HD3D
AMD = HAS 3D! EXCEPT! some games requires CVar tweaks to get HD3D working ie: Crysis 2
Stereoscopic 3D
NVidia = massively dominates the sector with this option *thus gamer/entertainment enthusiasts* (3D Vision notable read but it's on 2.0 now)
Forced 3D?
Any card + 3D capable monitor + force via monitor settings tweak.
That's pretty much why i signed up to post and i hope that made it easier for you (the entire forum already narrowed down for you btw. 30%? no brainer! now choose your path and purpose)