"We tend to choose the America that is culturally congenial. Most people in the San Francisco Bay area wouldn't consider living in the Dallas-Fort Worth Metroplex, even for much better money. Most Metroplexers would never relocate to the Bay Area."
Not true. The main deterrent in moving from the SF Bay Area to the Dallas area is the weather -- we have here in the Bay Area the most temperate climate in the country. As for culture we are all part of a much larger media-driven culture