I hadn't thought about the "people from all walks of life" aspect missing from SF before. I find that true as well. I haven't been to many other big cities but I'm curious how SF relates on that aspect to cities such as Seattle, New York, and LA. I wonder if SF actually does have quite a lot of diversity if you expand your definition of SF from anything within 10 minutes of Civic Center to everything from Outer Sunset to South San Francisco.