I always thought IMAX technology was a little more advanced than it actually is. From the look of things, I'd say it's almost archaic. Movies are about to go digital with video disks and light emitting diode projectors, so IMAX, while still offering 3D visuals, will be technologically behind the curve and rather expensive to maintain and operate.
I was amazed by the size of projection reels and the arc light bulb! That reel was only six months old, but looked like a movie projector from a decade ago. That bulb was both amazing and expensive. Its was huge and looked as though it utilizes arching electricity to generate light! At six grand a pop...owch! I wonder how much it weighed...