I think DVC math is fuzzy math, but that's okay with me. All the previous reasons resonate with us; never vacationing without being forced to, staying bougie versus crammed into a room with luggage and crap everywhere, not going anywhere for years otherwise, being in the bubble, etc.
My math is also skewed by comparing costs to any other place as a family. I do all the vacation planning/paying for the trips themselves (airfare/tickets/excursions/food/supplies/
scooter rental/Owners Lockers) and DH buys the points and pays the dues. He doesn't want to be bothered with details and budgeting.
We rented a cottage by the ocean, one street back from waterfront. Yes, we had laundry and a kitchen, but I was grocery shopping and cooking every meal. Linens were not provided, so we schlepped that and made the beds. Aside from the ocean -- which was awesome! -- on rainy days, there wasn't a ton to do, and the local arcade was expensive. If we wanted to do anything, we had to drive and pay parking. My husband can't walk far/long, so a lot of strolling downtown ended up being a bust and not enjoyable. That trip cost almost as much as a week at Disney for us, and it was wayyyyy less convenient and a ton of WORK while on "vacation."
We go weekly in the summer to our local Six Flags to use the water park. The food is horrible and just as expensive as WDW, but the quality is totally inferior. It's cost effective for us to go since it's so close, but we'd be easily spending $400 a day if just visiting for a day visit, which would be a "one and done" if we had to do it that way.
Went to see some major concerts this year, $15-$20 for a drink or crappy hot dog/pizza slice at the stadium. That's going rate anywhere, and the food was so bad, I would have gladly paid Boma/Crystal Palace prices for food of that quality if it was available!
Disney IS expensive, but I'm not seeing a ton of "deals" anywhere else, either, especially when we're approaching needing two rooms versus cramming us on two queens in a regular hotel.
When at WDW on DVC, I am looking at the long game of trips. We've done multiple extended family trips that never would happen trying to coordinate several rooms paying cash. Awesome memories while the kids are young, bringing their cousin and friends.
We have several DVC family friends who coordinate trips with us. More fun!
My husband's mobility is limited. I rent him a scooter every trip now, and the difference in his mood/outlook NOT being in constant pain is night and day. Happy hubby=much more enjoyable trips that HE can participate in. If he's tired, he can go back to the room easily to rest and regroup. Plus, he loves shopping and throwing the goodies in his scooter basket, LOL. Disney is so convenient for this reason.
The kids know how to get around the parks. They're too young to turn loose, but as a parent, we are much more relaxed with them eventually staying out late at the parks versus any other public vacation spot where we may not have a vehicle to get to them ICE. I'm sure as they get older and want to ditch us periodically, or sleep in while we go out for breakfast, it'll be nice to be together AND separate as our body clocks change.
We're looking forward to grandchildren, hopefully, and we can certainly babysit at WDW with all our creature comforts while mom and dad get an evening out.
There's no summer cottage or lakehouse for our kids to inherit, but a free contract at Riviera and/or Poly that they just need to cover MFs on seems like a great gift for them to use when we're gone. If they choose to sell, no problem. I'm sure they'll recoup what we paid in by year 2040ish, if not way sooner.
Our extended family is scattering/dying off. It's shrinking to our core four. I still host Christmas, but after 25 years, this mom's tired. My sister and her husband and daughter and our core four are now booking yearly WDW Thanksgiving trips so no one has to cook. She's going away every Easter with her friends' families. My husband's parents are gone, and he only talks to one sister out of his three. All his nieces and nephews are much older and scattered throughout the country.
My dad's Stage IV and has already made it past his expected timeline, and my mom won't be going anywhere without him, so we're making memories on holidays while we can. We would LOVE if my parents came to WDW with us, but they won't leave their locale. I'm grateful we get to do trips with my sister and BIL and niece. That's all we have left! I figure WDW is convenient for family meetups on future holidays. If our kids want to do something different as they get older, we can rent our points and use the cash to go somewhere else, but the convenience is really great, and the accommodations are lovely with DVC.
Lastly, having a kitchen and laundry in the room, Owners Lockers of all our WDW gear that we don't have to pack -- DVC really is our home away from home. We don't rush anymore on vacation, and that's awesome.