This talk of Disney has me thinking back...
Some of my earliest memories are of our family vacation(s) to Disney World; we went pretty much every year while I was growing up. This involved a three-day car ride each way, down from New Jersey and back. With three kids. I don't know how my parents managed that.
Earliest trip for me had to be about '71 or so. I do remember being there just before Space Mountain opened, and I don't think that was our first trip.
Some other early memories:
Lastly, I remember loving Disney so much that it actually made me sad... It's a hard feeling to describe, really, but I was just so worried that it might someday come to an end. I guess I was a melancholy kid. Disney was a lot for my widdle bwain to take in.
Here's a great site with old pictures of Disney, and people's recollections.