Everything you mentioned is so true, ER. Even going back in time–pre-Qualcomm, Biotech, etc., etc.–the job market here was always dicey. As a native, it’s been interesting to see how things have not really changed that much over time.
Other than real estate investments, made over a long period of time, no one in our family or extended family has ever been dependent upon this economy for creating wealth–(jobs and businesses were not restricted to San Diego)–and that is perhaps why just about everyone in our families have been able to stay and enjoy great lifestyles here for so many years.
It truly is a wonderful place to live–if you can afford it–and that is the key factor many should consider when moving here.