Agree! We aren't annual Disney goers, and I have already came up options how we are going to use the points (which categories to book, which resort). One of the options I have, it requires me to bank and borrow all my points so 3 yrs of points into just one vacation. I did a spreadsheet and very basic analysis, I actually save more money just that one trip vs. going annually for 3 yrs. Of course, I am very aware this is not the norm, and not that many people would even consider doing this. But to each their own, as long as you use all your points every year and your family is happy, that to me will always be worth it.
I am also a firm believer of "Buy where you want to stay and love most".