[smacktoward]

The "Vault" part sounds a lot like the Disney Vault:

http://en.wikipedia.org/wiki/Disney_Vault

... which is Disney's polite way of explaining why only a segment of their most popular animated titles are available to buy on home video at any given time. Each title has a window of time when it's available for purchase, and at the end of that time, it goes "into the Vault" -- meaning that Disney deliberately stops selling it for several years.

This strategy ensures a pop of sales from pent-up demand when the title rotates back "out of the Vault" into circulation again; and, since titles spend years in the Vault, it puts pressure on potential buyers to buy now or potentially lose the chance to do so for a long time.