I think he likes his films, but is never "satisfied" with the result. THX-1138 even has a CGI enhanced "Special Edition"! THX was phenominal! Why mess with it? If you have a few nags, it is understandable to patch them-yet not detracting from the overall experience. If only George followed Ridley Scott's lead. Scott enhanced Blade Runner for the final cut, but didn't feel the need to perfect every little thing. i kinda get this feeling that Star wars has become a sort of chore for him. It doesn't ever stop, thus there is a sense of: "Well, while I'm here I guess I better replace Han with a fish-man."