When my husband and I traded our rental in the Highlands for home ownership in the ‘217 we knew what we were giving up – among other pleasures, the ability to walk to a sushi dinner. So I was giddy when the sign went up late last fall on Preston Highway announcing a sushi restaurant opening soon. Sushi on Preston! The dreary no-man’s land of day-labor, fast food and dry cleaners south of Eastern Parkway would finally offer more than a quick route to the airport.