I've seen Avatar 3D and it is simply BREATHTAKING! Really, really, REALLY good! I didn't mind paying the over-inflated ticket price for THAT! Although to be fair I did go on Orange Wednesdays (it can't be me that only remembers back in the day when a FULL PRICE adult ticket was something like £3.40?! £9 was the standard ticket for Avatar 3D!!!)
Anyway, definitely worth seeing, 100%! At times it is genuinely difficult to distinguish between what is real-life action and what is CGI, one faces and characters etc.
Erm, sort of I guess, but you just get totally immersed in to it all with the 3D whatever. Pick a night that you're bored out of your skin,and then go along and see it. If you don't like it, you haven't wasted your time!