I went quite a bit to Disneyworld Florida as a small child, as we lived nearby. Since moving to the UK, I've been lucky to go back many, many times, never as a holiday in itself, but as part of wider holiday in Florida/seeing family.
On the face of it, it's just a theme park, but once there, it's much more. Everything is geared up to be good, everyone is friendly, everything is clean, keeping the 'magic' alive is paramount. Rides are fun, shows are spectacular. My family and I are all as cynical as they come, and yet all of us still love Disney. I wasn't quite so enamoured with Disneyland Paris.
Also Disneyworld is more than just Cinderella's Castle, there are 4 parks plus 2 water parks. And they're each HUGE. I love Epcot for feeling like I'm stepping into another country for a moment, I love Animal Kingdom for the incredible world building of different continents, and I love Hollywood Studios because I'm a massive film fan and love the insight into the behind the scenes.
And guess what, I'm also well travelled, always visit UNESCO sites, churches, art galleries and museums around the world on my travels (and sometimes pop into a local museum on my lunch hour to study a particular painting or artefact), love opera (and pop), read literature (and very occasionally chick lit) etc etc etc.
We can all like different things. And you don't have to go to Disneyworld/land.