So if I am not a dvc member and buy resale I can use the points at dvc at Disney? Was looking at AKL becuase of the extra perks, but would want to stay at BLT. We would do most of our travel in Oct or mid May, but would only book around 3-5 months out. Would that work?
Your DVC points, whether purchased from Disney or resale, can be used at any DVC resort. For both, you have a priority 11-month booking window at your "Home Resort", 7-months everywhere else.
Perhaps the most difficult adjustment we had to make when purchasing DVC was booking our vacations well in advance. We were "last minute" WDW vacationers, often booking our trips only a couple of months out. With DVC, we find ourselves booking vacations at the 11-month or 7-month window. Then, if we change our vacation plans, cancelling that trip and rebooking another.
The second biggest adjustment was dealing with limited availability. Disney has sold about 98% of all available points at the DVC resorts. This means that the resorts are effectively 100% much of the year. For example, my first DVC purchase was at BWV but even I was unable to book a 2-bedroom "Standard View" room at BWV at 11 months. (We ended up booking a Boardwalk View.) DVC members like to save money just like anyone. That means some of the least expensive rooms are the first to be booked.
May and mid-Oct aren't particularly more difficult to book, except at BWV and BCV during the popular F&W Festival at Epcot, which are extremely difficult to book if these are not you Home Resorts.
The good news is that it's much easier to book at SSR and OKW, even on short notice. AKV isn't too difficult to book right now but I think this will change once AKV sells out.