So Fredericksburg, VA Costco. National Beef, one of my favorite brands, USDA Prime Rib Roast, $9.99/lb, USDA Choice $8.99, just dont get it! We have been asked to cook a rehearsal dinner in a month for about 60 people, so picked up a little over 30lbs. They wanted Rib Roast, so sweet deal for them. Will Wet Age it here a few weeks and then cook it up on Memphis. Will be Cesar Salad with Rib Roast, twice baked potato, glazed carrots, various cheese cakes and pie for dessert!