Many SiliconValley tech and financial guys would prefer to live on LA's Westside if they could...far higher QOL for single guys; a more refreshingly open capitalist/hedonist culture...many make do by simply renting a wkend place in LA (IIRC, some 25% of high-end rentals on Westside are rented by those whose primary home is in SV)
That said, for families, SiliconValley's most elite suburbs (Woodside, Atherton, etc) are ~50%-70% cheaper (per acre land costs) than LA's Westside comparables (BeverlyHills, Brentwood, etc)....and QOL for families is arguably far greater in SV b/c of its high concentration of smart, education-focused, high-achieving parents
Unfortunately, LA region dramatically lags behind SV in both leading (and start-up) tech cos. and leading (and start-up) hedge funds, private equity funds and VCs.....thus, much more limited career opportunities for many in LA vs SV....many need to wait until retirement to move to LA full-time
