Even listing something as a perk, advertising and training personnel has some cost. But ignoring the overall negligible costs of such, there are many things that have no direct cost to
DVC and in many cases, to Disney in general. These include any restaurant and similar discounts. To me, I'd rather DVC go to bat to get good value exchange options rather than trying to offer everything. Play hardball and be willing not to offer certain resorts if they won't give a fair price. I know that's not popular with many members here but it's the way I feel. And I'd like to see DVC go after the DDE option directly for members in the same way. As for pool hopping, I think it has a LOT more cost the way it's set up that most any other perk.