Umm, yes. Once every trip. No joke, it is that entertaining.
As far as ET goes, it can leave if we get something better. Given that Teebin at one point in time implied that Mario and Yoshi were the lock, with DK being a stretch, I would happily give up ET for an indoor, highly themed DK mine coaster.
Also, I love ET, so seeing it go would be sad, but seeing something better in its place would make up the difference.