poita said:
It doesn't really matter, there would have been different gate weave on every projector that ever showed Star Wars, once gate weave is removed, it looks dead/non-film to me, but it is a personal preference thing.
Amen.
As for dust and dirt removal, how do you decide what to keep and what to remove? IMO you either keep it all or you remove it all for consistency, I think it's preferable to make two versions - one that is cleaned up and one that is not.
In the case of old special effects films with a lot of opticals like SW, the issue get even more tricky, as there's tons of dirt and scratches built into every optical. Heck even the opening Fox logo had picked up a hair in one of its searchlights in the '70's. In a true preservation things like that should stay. That's what was so beautiful with photochemical restorations in the past, when you didn't have computers cleaning every frame. The average person expect to see sterile clean looking images without grain these days, they have basically forgotten how films look. The only thing they care about is resolution.