WAPATO, Wash. -- More then three dozen wine buyers from major U.S. restaurants and retailers are plucking grapes from vines and swirling and sipping wines during a road trip through Washington wine country this week, part of a concerted effort to raise the industry's profile outside the Pacific Northwest.In its third year, the domestic promotion sponsored by the Washington Wine Commission includes stops at vineyards and wineries in Seattle, Walla Walla and the Yakima and Columbia valleys.