I know that many members do use points to cruise. That doesn't change the value proposition going forward. In most cases, it is NOT a good value to pay for cruises with points. Members who buy DVC to cruise, whether it be direct or resale, are making a poor economic choice. IMO, most who buy resale are very rational and have not and will not buy to cruise. So there is no reason to suppose that the resale market will fall.
The value proposition is different for those who have already purchased and occasionally use their points to cruise. They have NOT lost a thing.
I do remember the limitation on cruising (although I think that the main reason the limit was reached at all was due to the cruise incentive DVD offered new purchasers. I do not think the limit will be such an issue in the future unless DVD goes back to that incentive).
Consider this: If resale points are no longer allowed to book cruises, perhaps availability will increase for the grandfathered points and those who purchase direct. The cost of cruising may also go down, since DVC will not have to send so many villas over to CRO to get the $$ to pay for the cruises. Less availability of cash DVC villas means less discounting required to rent them, too.
With all due respect as I realize you are just saying this could be as a result of the change, I am not interested in perks or rule changes that possibly maximize things for me and minimize for others. I am interested in fairness to all members and in the value of my contract being effected by the economy and the supply of direct purchase points and resale points not a new rule instituted by DVC. If life happens to throw me a curve ball like it has thrown to so many of our fellow members over the course of this difficult economy, I would prefer that my contract not plummet in value over the course of the next months or years because of this rediculous new rule. If something else causes it to do so, so be it.