Maybe it's just my own nostalgia making everything better than it probably was at early Epcot. If I remember hard enough, I can see myself pretty bored as a kid and wishing I was at the Magic Kingdom, although I loved the dinosaurs in UoE and the trolls in Maelstrom and maybe even Figment, or Kitchen Cabaret. But Spaceship Earth is something I have close to no memories of, and World of Motion I remember being less than thrilled about. I hated Body Wars because it made me sick, and I even thought Cranium Command seemed jarring with all the celebrities (yes, I was a strange kid who noticed such things). There was one attraction that I loved and that looking back now, was the one to bridge generations together, and that was Horizons. As for the rest, when I think of my early experiences, I recall being small and immersed in the really dark rooms with big screens (the original UoE preshow) and sounds and people towering above me...but also just wanting to take the monorail to MK and go on Mr. Toad's Wild Ride again.
That said, as an adult I have an appreciation for the integrity it once had. Maybe as a kid I would have more temporary fun now, but there's a chance I wouldn't have that lasting impression that those original attractions had on me. As boring as some of them might have been at times, I still remember feeling that I was taking part in something special, something beyond my understanding. And now I know. O nostalgia, the ache.
