I think paying for it out of pocket is a very different thing than taking out a loan for it. If you have the cash to pay up front (and didn't do something crazy like selling your house and living on the streets to do it

), then that's a luxury that the person has chosen and it's worth it to them.
The loan is trickier. So many people are bound by credit card debt, car loans, and house payments and I hate to see people saddle themselves with more debt, even if it is in the name of Disney. They see it as a great value because they see the initial price investment for 30 years and compare it to the cost for one trip they've just paid for out of pocket. I think a lot of people don't consider the annual dues, theme park tickets, transportation (flights aren't cheap!), and food costs that they're still going to be paying, plus the biggest expense - interest. If they pay the loan on schedule, they're throwing away thousands of dollars on interest. If I remember correctly when I looked at the numbers when I got married to see if it was something we should do or not, if you take loan Disney offers, you pay almost as much in interest as the initial starting fees. As others have said, many of them would be better off to invest the amount they're paying each month and using that to pay for trips as they come.
I understand why some people love the vacation club, but I have no interest in ever joining. In addition to the reasons I already mentioned, I just don't see it as a good choice for my husband and I. For one thing, I don't like the cut off dates and the current lack of information about what's going to happen when they expire. Being less than 30 years in the future, my husband and I would only be in our 50's when they would expire, with plenty of good Disney years left. One of the big reasons I read a lot of people use in defense of DVC is all of the money you can "save" by using the kitchens and cooking meals (which I think is debatable since you're paying the money to join, plus the extra points to get something above a studio). I love eating out and do not want to cook on vacation. I'd rather spend the money I'd use joining on getting good Disney food (not all on one trip, of course

). When comparing the decor of standard rooms to DVC rooms at the resorts that have both, I think the DVC rooms aren't nearly as well themed and decorated. They're much more generic looking and I want the full Disney experience. And probably the biggest reason of all is that I like staying at different hotels. They all have their great aspects and I would be sad to miss out on all of the ones that aren't DVC. Even with as much as I love and adore the Polynesian, I wouldn't want to stay there the whole trip, every trip.
Can't wait to take my twin boys on their first trip to Walt Disney World! Planning on heading there sometime Feb-May 2014!