Disney World is my own personal hell. The one time I went there several years ago, I must have seen at least 10 young people (no more than 40) who were so fat that they had just decided to give up walking and zip around on those personal little scooter chairs. At least DW doesn't let them zip right up to the front of the line anymore.
Most of our Argentine friends truly came to visit the US to say hi and then SHOP. The first time I was a little offended (The US isn't just a big shopping mall people! We do have some sights!) Now I just enter the nearest outlet mall into their GPS, wave goodbye and go get a real California burrito.