I toured a SC at DTW Friday - deciding whether to join. An employee there gave me a 'brochure' that has this deal on it: "Join the Delta Sky Club now through December 31, 2010 and the initiation fee is on the house - that's a $50 savings. Plus, enjoy an additional 10% off of your Delta Sky Club membership. To purchase a membership, please see a Delta Sky Club agent, present this brochure and mention promotion code GRPN1." So, I guess if you are interested in a SC membership, visit one and ask for this brochure to save some $$$.