I think this is only applicable if you definitely want perks, namely the annual pass, in the future. Perks could be better, they could be worse in future.
DVC already took away everything they are legally able to take from resale buyers- all they can do is add on. The agreement, the deed, the fact DVC is a member's club (a distinct legal situation, at least here in the UK and I suspect similar over there) of which all owners are a member by ownership of the real estate interest, the fact all items left are paid for by dues (making illegal to restrict anyone paying those dues access, hence the pool hopping and TOTWL privileges), and protection offered by Florida Statute 721, all add up, in my view, to the fact they are not taking anything else away. If they tried I suspect they would be hit with the lawsuit from hell, and I would be joining it when the Florida attorney advertises that class action. So if you bought just for the use of DVC properties or the main exchange programme, have no intention of going for any perks and have no interest (I don't get an annual pass, I will very likely not be there when any Moonlight Magic are on, OK a 10% discount in the restaurants would be nice but I would never get my money back), then speculatively buying 25 points at nearly $5000 is in my view not a great idea unless you really need a 25 point add on for the points, and want a new resort (otherwise get 50 elsewhere for the same money). For perks to increase, DVD would have to spend ever increasing sums in marketing cash, and to do that they would have to know there is real benefits of selling even more new timeshare based on modelling predictions. Maybe they will be able to show that, and maybe one day a fabulous perk will come along which makes me think, darn I wish I had bought direct when i could do it for 25 points, but I doubt it.