I just received the following email from Delta which stated they that they are offering discounted awards for Medallions and Co-brand credit card cardholders.
SkyMiles Awards for Medallions on Delta
Get a jump on your fellow flyers during a special two-day Award Travel sale. On September 22nd and 23rd, only Gold, Platinum and Reserve Delta SkyMiles Credit Card Members like you will be able to enjoy discounts of up to 10,000 miles per round-trip Economy Class ticket for travel on select dates between October 22, 2014, and February 28, 2015. Just log in below to view these special deals. EXPIRED
Through this offer, you will be able to redeem domestic awards for only 21,000 miles instead of the regular saver 25,000 mileage levels. Be sure to book by tonight though!