OpenTable's site might be pretty sluggish today. Washingtonians are cramming in last-minute weekend reservations for the 167 spots participating in this year's record-breaking summer edition of Restaurant Week. While the prix-fixe menus are notorious for surcharges, limited selection and only cheap cuts of meat (hello, skirt steak; goodbye, prime rib), Restaurant Week lets anyone feel like a foodie for 30 bucks. Pretty good deal? Not really, according to George Mason University economics professor Tyler Cowen. His popular blog, Tyler Cowen's Ethnic Dining Guide, gives readers the straightforward scoop on foods from at least 75 regional categories mostly in his Maryland-Virginia-D.C. neighborhood. Even during Restaurant Week, Cowen prefers trekking out to Eden Center, a Virginia shopping center nicknamed "Little Vietnam," or... More