I do feel sorry for people that have a deep connection to Splash Mountain. I don't think I've ever had such a deep connection to a ride that I would be devastated if it was gone, but several of my favorite Disney attractions are already gone and it does suck. As a kid, my favorites were Horizons, Journey into Imagination, the whole Living Seas pavilion, Spaceship Earth, and Carousel of Progress. The first is gone entirely, the second and third exist in name only, and the fourth has been altered for the worse. Only Carousel of Progress is the same (I must have seen the older version of the final scene, but the current version is what I really remember). I also really loved 20,000 Leagues Under the Sea.
It's not quite as fun to go to the parks and not be able to experience those attractions.