I agree, but just to play devil's advocate: what I understand was that with 50 rooms there will only be around 600k points, and there are a number of people will buy several 50 point chunks just so that they can flip them on resale.
Someone may not buy 160 points at GCV (or VGC, whatever it is) to add to their portfolio, but if a founding member sees that there's going to be a big draw from other DVC members, or those who aren't in yet buy specifically want GCV, then the driver to buy multiple 50 point contracts and flip them for a huge "supply/demand" profit will be there.
I'm personally planning on buying 50 points (or so) so that I can go once every 2-3 years, but I could see people doing otherwise to make a buck.
Just my 2 cents...