Back pre digital I was once lucky enough to see Aliens on one of the private cinemas at Fox, and it was astounding. I think people underestimate how poorly operated most normal cinemas used to be, combined with maybe not the best prints etc.
Funny enough, I want to see a version of Chungking Express that feels processed to look like an early-2000s digital camera.
Commercial theaters are all digital now. They don't even have film projectors anymore. Some independent or "revival" cinemas might still have them.