As the PP said, they have been offering discounts on rooms for Passholders (it does not matter which level of WDW pass you have). Like DLR the discounts are rolled out, generally about 3 months in advance (sometimes more). For the last few years, there have been discounts pretty much year around, but that might change at any time. The discounts vary by resort type (Deluxe, Moderate, Value, DVC) and not all room types/views and resorts are included. Call early when the discounts are released to get the best selection.