If you need to make the math work, you are a bad candidate for DVC. DVC works best for people who can plan eleven months in advance (there is no reservation for THIS December or January at this time), who don't mind staying at the resort they bought at, and at seven months if something else is available, might switch, and can afford to tie up $20k+ of capital in a timeshare. Whose plans are firm (extended family makes firm plans.....difficult). You MIGHT save money -you probably won't if you have any intention of treating anyone other than who you'd pay for anyway and we certainly haven't. Don't buy where you will be disappointed to end up - you may end up there more often than not (especially given your travel patterns - from October to mid January plan on staying at your home resort every time - IF you book eight months in advance or before - otherwise, you may get locked out completely). So if your husband has his heart set on monorail or Skyliner, he will be disappointed if you don't buy there. It isn't worth it to save a few thousand on a purchase that is going to cost you hundreds of thousands over its lifetime to not be where you want to be.
Make sure to understand availability patterns - your post says you really don't yet. Because the thing that disappoints many new owners is the lack of availability for switching resorts - especially if you are looking to studios. The other thing that disappoints is that Disney is a business and if you don't want to see how they make pixie dust (did you know that to get cocaine, you have to soak coca leaves in gasoline?) don't buy DVC.
Make sure to understand availability patterns - your post says you really don't yet. Because the thing that disappoints many new owners is the lack of availability for switching resorts - especially if you are looking to studios. The other thing that disappoints is that Disney is a business and if you don't want to see how they make pixie dust (did you know that to get cocaine, you have to soak coca leaves in gasoline?) don't buy DVC.