Yes, this, exactly! This is exactly what many of us here are trying to convey, and many others (understandably) don't seem to understand.
It wasn't just a place to kill some time, knock back a few beers and forget your worries, it was a place to see all that humanity was capable of, and leave with an excitement for what the future could bring.
I was too young to experience EPCOT Center as an adult, but as a kid it was mind-blowing, inspirational, incredibly enjoyable and like nowhere else on the planet. Calling it a 'theme park' seemed wrong, somehow. It was something different, something greater than that in its prime.