Point prices are dropping due to an inevitable process that is built in to the fundamental economics of timeshares. Essentially, timeshares have little or no organic demand. Very few people wake up and think, "Today, I'm going to obligate myself to pay for the operation and maintenance of a portion of a luxury vacation condo for decades to come." Instead, it is all manufactured by sales tours that promise to bottle the "magic at today's prices". And, those tours are very effective; sales remain fairly brisk even in the face of a relatively poor overall economy.
But, as the system grows, the number of people looking to sell for whatever reason also grows---they get tired of
DVC, the kids they bought it for have outgrown Disney, their financial circumstances change, who knows. Unless the set of people interested in buying resale *also* grows just as fast, prices must drop. Inevitably, the secondary market fades, and eventually collapses. It has happened to every other timeshare developer, it is happening to Disney as well. The DVC secondary market has ridden the wave longer than most, because they have a unique product and a strong brand name. But, eventually, the pool of ready and willing resale buyers runs dry.