If Teenage Mutant Ninja Turtles and Transformers is something naostalgic to you then I assume that you must be fairly young, and not old enough to witness a major ride that you love being closed and shut doen for good.
What if Disney decides to shut down Splash Mountain or Indy? Or more likely, Fantasmic! will be gone in about 10 years.
I'm thinking that if something like this happens, which it will just might becuase they've done it in the past, I bet you will be equally as nostalgic for these rides (as may I).