Once Temecula hits bottom, I think it will stay low for a lot longer than San Diego will. Other than the advantages San Diego has in jobs, climate, and proximity to the airport and ocean, I’ve been noticing that you see of lot of what appear to be wealthy Europeans and Asians in the nicer parts of San Diego. This trend seems to be increasing – just from my personal observation.
In Temecula/Murrieta, more and more, you see minority families that appear to be barely scraping by.