It's simple. If you rented
DVC points at market valve then you will pay $12-16 per point. Therefore, DVC resale contracts with points available where you don't pay additional annual fees is simply a reduction of the purchase per point cost. For example, if you purchase a 100 point contract for $100 per point and it has a 100 banked points. I would assume the actual purchase cost is reduced by the value of the banked points or $100-$12 or $88 per point purchase cost (assuming these points can be used before expiration).