You've heard plenty of people expound on why you should see it already, so sadly I cannot offer much new to the table. It was heavily anticipated, and one of the few movies I've seen in my life that is worth the considerable adulation given to the film. Seeing it in IMAX makes the experience much more intense and involving, thus giving you a reason to spend the money for the ticket price. I'm glad I experienced something this visceral the way it was meant to be seen. Four days later, I still want to see this movie again. Go see the film in IMAX if you haven't already, you won't be disappointed.