>Aside from housing, cost of living isn't that different, at least if you don't have kids. Things you buy from Amazon cost the same. Maybe it'd be a different situation if I had children.
Transportation costs are much higher in the bay area than normal parts of the country. Gas is usually $1/gallon more expensive (bay area electricity is about 2x as costly as the national average), car insurance is high, and the congestion is substantial.