 Ginza Sushiko, sometimes spelled Ginza Sushi-ko, opened in 1987 in the corner of a mini-mall of an unglamorous section of Wilshire Boulevard; it was not far from Saba-ya.Originally aimed at Japanese diners, it did not advertise and had an unlisted telephone number.However, it quietly gained a reputation as the most expensive restaurant in Los Angeles, and a place for food purists.