I first went in 1975, as well. I don't remember most of it, as I was only 6, however I do have images to draw upon. I remember the Country Bears, and loving Its a Small World (what was I thinking???). Dumbo was a great ride, and the Tiki Birds were kind of boring hehe. I remember riding the ferry instead of the monorail, and just how great the place was.
Mostly, I remember what we didn't do! LOL. We didn't ride the Skyway, nor did we do the Speedway. Being from St Petersburg, FL we did not stay on site, but made it a day trip instead. I didn't ride the monorail due to the lines, and didn't stay in Tomoorow Land very long, as we went to the left as we entered instead of the right.
I also remeber later visiting Epcot right after the release of Captain Eo (sp?). Figment was great, and the coutries great! I was in high school by this time, and I loved to learn. I also remember my hurting when we left due to being full of new knowledge! Again, it was a day trip.
Right after MGM opened, I made my third visit to WDW. MGM was pretty boring, with lost of stores and such, as it was a very active film and television production company. Not much room and not a great amount to see. My greatest WDW memory of all, however happened here. The family was walking along, and we took a corner to reveal the AT-AT in front of Star Tours!

No, no, you don't understand....Star Wars is the greatest of all things! (er...second to my family, of course

). My parents will tell you it was like I saw Santa for the first time...that big gray thing....anyway, the attraction was being tested before it's grand opening. I rode it five times (til my family was sick of it). Star Wars AND Mickey?! How cool is that!?!
My new bride and I went back this past January for our honeymoon (she is a DL fan!). despite getting violently bedridden ill for the second day of the three day land portion of the Disney honeymoon (we also took the
DCL), the trip was awesome!
I DEMANDED that we stay on property (the Swan was our hotel), and was so happy that she brought up the idea of touring the DVC (those propaganda films on the cruise did it for her). Now when we go, no day trips and no off-site bargains...Disney 1st Class all the way!!!
Oh, and I finally got to ride the Monorail and Speedway on this last trip with a crazy man at the helm! (My best friends crashed the honeymoon, stationed in Italy, and I swear their son tried to jump the track and kill us both

). To get to DVC at SSR early early in the morning, we cut through Epcot from the Swan to catch the bus...cut through a Disney park...at $50+ normal admission...yep, welcome to the Park Hopper Pass! How cool is it to be able to say that!! hehehe
In summary (I can hear the sighs of relief now), no matter what the situation, just remember the Disney magic and it will all be worth it...especially for those of us who can latch onto the WDW we remember as kids.