When I think WDW in the 90s & early 2000s, I think of excellent food. The food quality in the non-signature restaurants was equal to the signature restaurants now. DS was considered a Disney child at the time. The restaurants served smaller portions of the adult items. He could order filet, duck, etc., just in a smaller portion. When the menus started changing, we had to start ordering him adult meals, even though he was still considered a Disney child.
As far as crowds, FP made a big difference in wait times. My family started going to Disney, when WDW was only Magic Kingdom. As a young child, we stood in many lines for 2 hours. You could expect to wait that long for Peter Pan, 20,000 Leagues, Haunted Mansion & a few others. Dumbo was at least an hour. That's if you were lucky & hit it at the right time. I laugh, when people say their kids can't wait in a line longer than 20 minutes. Those people couldn't have ridden anything at MK at the time. They would have been taking boat rides, touring the tree house & seeing shows. I'll take that back, they could have possibly gotten on the Skyway & the train in 20 to 30 minutes, if they hit the line at the perfect time.

Other than that, they would have been out of luck. The crowds in the 70s to 90s weren't as bad as they are now, but there was no FP. You can definitely ride more rides now in the same amount of time.
ETA: We were only able to visit MK in the summer. The lines may have been more tolerable at other times, but 2 hours isn't an exaggeration in the summer.
For us, as Floridian passholders, the castle cake was awesome. It's fun to have a new experience. I loved it. I'm sure I would have felt differently, if we would have only been able to visit once.