Don't even get me started on George Lucas.
I have all 6 movies in their first DVD releases and won't buy whatever other versions they bring out. That will probably be the case with the Superman movies. I still haven't bought the 2-disc versions of the Star Trek movies because I bought the first versions and I'm happy enough with them. The only one I might eventually buy is the director's cut of Star Trek 2, because it has more footage.