I have to respectfully disagree with you. The AP holder in California is a VERY different animal, than the AP holder in Florida. Most AP holders are single, and/or partnered. Family AP holders just might be a minority.
It has been our experience with our Disney friends, that are AP holders, are perfect DVC marketing targets, that just might snap up points once they understand how DVC works.
To alot of California AP holders, DVC has been an unknown until recently. Most AP holders in CA. have never been to WDW, and have no reason to do so. This was true of a friend of ours. He took a tour just to pass the time, and after finding out that in addition to us, that other friends of his are DVC members. Those particular California AP holder friends of his, only use their points for extended stays a GC, and annual
DCL trips. He decided to buy at SSR. He was a WDW virgin, and now goes more often than we do.
There are alot of pretty serious Disney AP holders, that can never get enough of their favorite park. They spend lots of money staying weekends on and off property, as well as full weeks for special events. They will always continue to spend money on accomodations for the rest of their lives at the resort. Once they do the math, and if they can afford it, they'll buy in.
Another group of Disney fans, is the very wealthy Club 33 membership. While I do not know how many of them are already DVC members, you can be sure they will toss more money out for a GC DVC contract. They already spend thousands monthly for dues, and dinner bills. And that is after waiting for years to become members, and paying thousands in initial fees. They attend "Club 33 only" events that go well into the night, and alot of them shell out for rooms at the GC. Part of the Club 33 member perks is free admission into the park, but only when they have lunch or dinner reservations. So, they also are AP holders for the days they don't want to dine at Club 33. If Disney ever builds Grand Villas at DLR, you'll see Club 33 members wanting them to impress friends.