We bought BWV because of the point price of the standard rooms. We stay there because we have grown to appreciate and like the resort and location much more than we thought we would.
We bought VWL because we have always LOVED the WL, I thought you had to be rich to own DVC and when they were building the VWL we never even looked into DVC. We bought 50 VWL points, at the higher Disney add on price as soon as we bought BWV. We thought 50 would be enough

we now own 175.
(We bought BWV, after it had been initially sold out. We were buying when they were converting the sales/model office).
We bought VB because we stayed there and loved the resort.
We bought AKV because I love the idea of a savannah view room, and I love the atmosphere of the whole resort. I look forward to someday bringing extended family there. This resort is more "my choice" than "ours," our other "homes" are wholly mutual in desirability.
Whether or not we HAVE to own to book at any of these, we do own, and for the most part I book 10-11 months out. If at 7 or fewer months out, I want to book and can't get into one of our homes, I would perhaps be disappointed, but not devastated...and at times we have CHOSEN to and have been able to stay at OKW, SSR and BCV.
Bobbi