It also looks like SSR TreeHouse Villas are very hard to get, especially during the summer months. There are 30 THVs in the DVC inventory and I think families grab them up quickly because they cost the same as a 2 bedroom but they have three bedrooms. I just looked at the Resort Availability Thread for August 2010, which is just now coming into the 7-month window. It shows 22 dates unavailable, and 19 of them are for the THVs. Although that thread is not totally reliable, I think it shows how popular the THVs are with the Membership.