First: Buy where you want to stay.
AKL is our favorite resort (well, it was when we bought) We knew that we would vacation in WDW at least once most often twice each year. We were already AP holders and we 95% of the time stayed at AKL.
So, we bought in direct AKV 100 pts. Not enough by any means and so we added 25 more for a recent trip-which was canceled.
Regrets: Why didn't we do this sooner?
You may want to look at buying the minimum direct and then add on (trying to keep the same use year) . You can get the Gold AP for less than you are paying for PH tix for nine days. There are a few weeks of blockout dates. You can also get the TIW card that saves 20% on most table service restaurants. You also have the option to add the dining plan to your
DVC stay (It is never free though). Also, your family of five obviously need two studios or a 2 bedroom. The 2 bedrooms at Kidani have THREE bathrooms.
The selling point for us was that DVC is like "pre paying" for accommodations. Yes, you have yearly dues. For us, we feel like we made a great decision. Our welcome home booking was at Beach Club villas (TWO studios) for five nights. We bought in May and we got 2018 and 2019 pts (August UY) We got the TIW card and we even went to a Moonlight DVC event at Typhoon Lagoon (never again though). We visited Top of the World Lounge for firework viewing (amazing) and we even stopped by the DVC lounge in Epcot.
Member perks are not guaranteed but then again they could always add more perks
Check the
point charts to see how many you need for your vacation stays. That will give you an idea for the amount of points you need.