Surprised at the number of bright people I work with with ties to Michigan... some have roots going way back.
Two are doctors that met as students... I've asked them if they plan on ever moving back and the answer is no... over 20 years, even the in-laws have relocated to the SF Bay Area...
The most recent home sold around here had plenty of East Coast license plates at the open house... I did speak with some and all had a job offer for a High Tech firm... some had planned to live in SF and found their dollars go farther living across the Bay....
Tech is certainly the driver... computers, biotech, power generation, etc... at one time Defense was a huge part of the Bay Area economy and only a fraction of what it once was...
Today, it was 75 with dark blue sky and not even a trace of breeze... really idyllic... now, if we could get the water issue solved and some common sense in governing... it really would be paradise.
Any doubts... just catch the news clips of the AT&T open at Pebble Beach today....