My first trip was 1995. At the time we were kind of perplexed about what Epcot was supposed to be. It was like 80% there, but missing something. And sadly, I can't remember most of the Epcot portions of that trip. My Dad remembers the pre-show from Universe of Energy. We both remember the first part of the original Figment, but not so much the rest. Bits and pieces from World of Motion. I got on RADP in 1996, and the Internet revealed the things that had already changed like Kitchen Kabaret and Horizons (which thankfully, I did get to experience thanks to the Test Track debacle), the old Communicore exhibits. I'm not sure if those would have helped (although Horizons definitely would, it's my favorite), but I would go back to all of it in a heartbeat.
Each change after, is like taking a piece of your heart, ripping it out and stomping on it. I can't think of anything I would trade of today over what was there before. Maybe some expanded bathrooms in World Showcase; maybe the 3 Caballeros AAs. I am scared and sad to imagine what is going to come next. I don't see current Disney doing anything other than rip out anything remaining from the old days because it's too expensive to maintain and operate, and the only things that will be added are the things that can be exploited ten ways from Sunday and require as little post-construction attention as possible. So like the last 15 years, but even worse. No charm, no surprise discoveries, no calmness (because your senses will be under constant assault needed for "engagement."). My "peak" Disney internet was the post-9/11 thru the start of the financial crisis period. I know where some of the internet analysis from that time period is buried, if we need to dig it out for the young uns.