There is no such thing as a fixed point in a city. But a salami sandwich at Turk and Larkin Deli still costs $6.25, which may be close enough. For every $300 prix fixe in this town there are 200 lunch lines like the one that forms at 11:30 in Mike and Jean Aburahma’s Tenderloin deli . . . After 39 years in business, the couple is on to their next stepping stone and have announced they will be retiring. Read the full article on the San Francisco Chronicle.