Survey cites it as major reason 2 of 5 residents consider leaving. You're not the only one dreaming of ditching the Bay Area for a Midwestern college town or a coastal city in the Southeast. Two out of five residents of the nine-county region have given serious thought to moving away -- mostly because of high housing costs, according to a survey released today by a business and public policy group. The Bay Area Council's annual poll found that concerns about housing ranked as the region's second-most-vexing problem, behind transportation woes. Even with some recent cooling in the local...