Disneyworld isn't for everyone, that's true.
However, I've found it to be a nice, if slightly expensive destination ever since my wife first took me there 18 years ago. I've been back every year since. There are an endless variety of good restaurants to choose from. The food costs about 1 & 1/2 times as much as back home, for the same quality food, but it's less expensive than say, New York or San Francisco. The entertainment, although not as sophisticated as one might find in Europe, is usually good, and the scenery is always lovely. There is also the cleanliness of the place, which I find appealing. I never particularly liked stepping over homeless people and dog feces in San Francisco. Disney employees are almost always more polite and helpful than you will find anywhere else. There is also the safety factor. When our kids were older, we would routinely let them roam the parks alone without fear of something happening to them. (Saved a lot on babysitters.) In contrast to my recent trip to Spain, I never worry about crime, or pick pockets when I'm on the Disney property. (This is NOT true of the Orlando area in general.) As to the expense, there are ways to economize. An annual pass or multi-day pass will bring the cost per day down considerably, depending on how many days you go to the parks. They also allow you to do things at a more leisurely pace, which I find to be the best way to do it. If you bring the cost down to say, $30.00 a day, that's not bad for 8-10 hours of quality entertainment. You can also eat breakfast in your room, and back pack in your snacks to cut costs. There are even deals available for hotel rooms on the Disney property if you know how to locate them. We usually paid around $100 or less a night. There are almost always airfare specials available to Orlando. I do agree that going to Disney from May to September is similar to wearing a fur coat to a bonfire. We preferred the weather in December and January.