I definitely will. I wanted to pick it up today, but the book store was closed already. It happens on Sundays!
I think I will go see it again though. I liked being in that world for almost three hours.
I'll probably go see it again too, though I'm not completely psyched to see it again like I was when I saw The Dark Knight. I agree with what you say though, the ideas presented in the alternate reality is the reason for visiting Watchmen, whether if it is for the first time or a second or third. Some of changes to our reality seem so authentic - such as Dr. Manhattan not seeing a reason to wear clothes (I mean seriously, why would you?) or a character that has erectile disfunction unless he feels the power that comes from being suited up as a super hero.
P-Worm