One thought about a DVC II, say Eagle Pines with a new 50 year term, Disney could easily find themselves in competition with the current DVC.
Let's say Eagle Pines is trying to sell in 2010, after being open for about 5 years. They would then be offering 45 years, at (just for an example), $100/point. Also, by then, many current owners may start thinking about selling their DVC memberships, since they'll be down to 32 years left. This just might be about where the prices begin to drop, or at least level off, as we start toward the downhill side of the original 50 year contract. In this case, let's say that resales start to go down in price. Just for example, say at that time they'd be $70/point.
Now, if you're a brand new buyer, which is more attractive to you? 45 years at $100, or 32 years at $70?
Numbers are for illustration, but I think the point is clear.