Aside from the current fundamentals think about IMAX from the eyes of a consumer. I remember IMAX as a kid being this huge movie screen I got to see when I went on a field trip to the museum. I now have the opportunity to see blockbuster films on the same screen or pay a buck more and see the digital version of the film (i.e. better picture, better sound). This is what drew me to IMAX in the first place.
Looking at the numbers currently...they are not so hot...but in my opinion this is a company with a lot of potential and well worth the risk involved.