I remember seeing the Dive show when I was younger, and wished that I could have brought my kids to see it. Also they do need to use the other show arenas also, including the lakefront arena for the boat show/waterski show.
That would be great, I know I personally wouldn't ride these rides, but part of the fun is watching the reactions of the people on the rides. And in the grand scheme of things, I would think this would be an inexpensive add on.