I first went in 1992, a year after DH were married and in our "bc" years (before children). Although I still remember the feeling standing at the top of Main Street looking at the castle, MGM studios was my favourite park.
I loved the old backlot tour, with the facades of so many TV shows, the ageing props and and seeing how the special effects worked I loved the Indy stunt show, still do (and joke about how well Indy has aged -lol), SOA, the Animation Studios and One Man's Dream. I have pictures of me in front of the buildings in SOA and "racing down the hill of SF". All that "this is how films were made".
When we first came with the kids they were really excited about it too, even tho they were used to cgi and so-on. And I was really please that LMA had come, which we'd seen in Paris.
Last visit was 2012, when most of it was still there, just the extended backlot tour gone. DH, Myself and DS16 were all in the water effects part of the show (on different days). This Christmas I'm going to be sooooo sad that all that part of DHS is gone, other than Indy. Even OMD is cut short I believe ....
I know change happens and I know I'll love Star Wars Land and Toy Story when we come back next in a few years. But I still feel like they've dismissed all the original features as irrelevant, when actually plenty of people are interested. To me, that's what made DHS different, not just another theme park, however well Disney does it. I will still enjoy it but not nearly so much, especially since there won't be much else. Nothing new yet from 4 years ago (I'm not counting Frozen), which isn't going to help either!