You mentioned researching salaries. Have you been looking into the cost of living in the Bay area? Food. Reg. gasoline is running anywhere from $4.09 - $4.29 a gallon right now. Using hotpads.com as a search engine, two 1-bedroom apartments resulted in the “$700-1,000 per month” range. Utilities? Phone? Are you going to be paying off a student loan? A car? Auto insurance? etc.
edit - PA is in the fourth most expensive area of the US to live in.