Repeat riding is an interesting subject. I think for true Epcot purists, re-riding the slow moving, edutainment people mover rides is a peak experience for them. This is what Imagineering and Disney is supposed to be.
For other people, those types of rides can only be ridden so many times. They prefer Cosmic Rewind or Tron or BTM. Thrill ride fans can ride coasters over and over and never tire of them.
One thing for me is a show like MV3D. I can absolutely appreciate that show. But I also can only see it every so often because it gets boring after too many times. Humor is tricky for me. Once I know the jokes it becomes less and less enjoyable on repeat viewing. And this wasn’t a “masterpiece “ in my opinion. It was a good show, but I didn’t walk out after seeing it the first time thinking “wow, this should be preserved on one of the Voyager probes that are sent into deep space!” And I know that it was Jim Henson’s last project. But for me, this falls into the oft quoted “the Disney parks are not a museum.” I mean, 30 years? It’s been preserved for 3 decades. I feel that it was a respectable run. But for me, a theme park is not the place to maintain a decades old show, especially if it isn’t pulling people in like it used to. Even museums replace displays after so many years.