The last 2 or 3 trips, Epcot has been our first park to visit, and I'd say that Spaceship Earth kind of does that. ToT is my happiest Disney place. Makes me grin every time I ride it. So far I've been fortunate to never have it closed for refurb during any of my trips. I think a Disney trip would feel as though it's missing something without ToT. At MK, there are several rides that give me that Disney feeling...Haunted Mansion, the Peoplemover at night, and Splash...in particular, the view from the top, just before you take the plunge down the falls. I'm extremely bummed Splash will be closed for refurb for my upcoming trip.