When Disney Vacation Development (DVD) launched Disney Vacation Club, the idea was to flatten demand across the year by having five seasons with varying points per night.
Traditionally, the most lightly visited periods at Walt Disney World had been January (after the end of New Years week), September (after Labor Day), and the first half of December (before schools' winter breaks). So those periods became Adventure Season on the
DVC point charts.
Overall, the point charts have worked well.
For the first half of December, the charts have worked TOO WELL. DVC members discovered they could stretch their points while enjoying pleasant weather, Christmas decorations, and holiday events. Especially for DVC members who do not have children in school, it's a great time to go.
DVC members who bought in the 1990s are getting older and becoming empty-nesters, as their kids go to college and move out and their own. That's likely to increase demand even more during the Adventure Season and Choice Season, especially at the oldest DVC resorts at WDW: Old Key West and BoardWalk Villas.
At 11 months, getting a home resort reservation is not a problem. At 7 months, there's always a risk that some categories at some resorts will be unavailable.