To the original poster, put it this way. I am 30 years old. I first went when I was 10. I loved it. Magic Kingdom was very much the same in 1991 that it is today. A few things have changed like the addition of Splash Mountain since then, but the core is very similar.
Then I went again when I was 14, 16 and 21. Then 29 and then 30. I won't lie to you, the place got better as I got older. The more I learned about the history of Disney, and Walt himself the more I loved it. The more I noticed the attention to detail the more I loved it. The more I searched for hidden mickeys the more I loved it. There are a million things at Disney that are superior to your average Six Flags park. I leave the Magic Kingdom in a borderline state of depression similar to leaving a friend who lives far away and not knowing when you'll see him/her again. I have yet to experience a park that can "get" me like that