I'm sorry but having been on both sides of this, I have to say it is often an emotional or other kind of trauma that drives these repeat viewers. One show in particular I saw a truly embarrassing number of times because I was going through something at the time and used the show as an escape mechanism. It's not something I'm proud of but it did happen. That's why when I see these kids seeing the same show 50+ times, I have to say I'm highly dubious that it's purely a fan thing.
I was a huge, huge fan of The Mystery of Edwin Drood (obviously), it was one of my favorite theatrical productions I've seen in years. But my total count of seeing it is in the single digits because I had a job and friends and other things going on so when I did see it, it was out of desire to appreciate the production and not to fill a void.
ON TOPIC: Spiderman does still have serious technical issues. Both friends I know who saw it recently had some kind of stop or malfunction, though none as serious as the OP.
"Get mad, then get over it." - Colin Powell