Bob's Winery Sells Bottles of Their Expensive,high-Quality Wine and a Cheaper

Bob's winery sells bottles of their expensive,high-quality wine and a cheaper low-quality wine.Visitors have to drive 45 minutes to get to Bob's winery.Bob also sells his wine at a shop in the city where consumers don't have to drive a long distance and charges the same prices.Assuming the preferences of the clients that come to the winery and the city store are the same,explain why Bob tends to sell the expensive wine in a greater proportion in the winery than the urban store.