There are a variety of DVC discounts that are offered and change from time to time. They are posted on the DVC member site and you get a list of available discounts when you check-in. I can't recall if the Steakhouse is currently one of the offers.
Yachtsman Steakhouse Restaurant
Experience a great steakhouse with aged cuts of Black Angus beef, chops, and poultry grilled over hardwood. You can even choose your own streak from the refrigerator case! Members receive a 10% discount from 5:30 p.m. to 10:00 p.m. on food and beverages (excluding alcoholic beverages, tax, and gratuity). Not valid on major holidays. For Priority Seating, please call 407-WDW-DINE (939-3463)*.