As a kid of the 60's, and a teen of the 70's, I have very found memories of Tomorrowland back then.
OK, CircleVision was a bit cheesy, but it did give you the feeling of movement, and the pre/post show exhibits by AT&T were fun. Carousel of Progress was cool, and then the post show with EPCOT was something to dream about. The Submarine Voyage was always cool, even if I did know at a young age that the Subs didn't actually submerge. Adventure thru Inner Space was another fun one, and its post show was a bit OK, but weak.
But I loved Flight to the Moon/Mission to Mars, I hated the pre/pre-show which was gathering a group to go to the main pre-show, but once we got to Mission Control and the AA's, it was really cool. As I got older, I started to figure out how it worked, starting with the live CM interaction with the AA's, and how the system had back-up's in case the CM failed to make their que time. How there were two different theaters and how the entire system worked.
So I think that it was Tomorrowland of the 60's that got me hooked on Theme/Amusement Parks. (Well, working at Hubbs/SeaWorld research as a volunteer also helped in other parts of the business).