Going out of John Wayne is about twice as expensive as LAX for flights to San Jose (I know I have done and priced both for the same day/time) (try going to Hawaii LOL.., international flights, LAX is the way to go “I drive there from SD because it is so much cheaper).
The Exurb’s are considered the exclusive area’s in L.A. with the exception of a few really high cost area’s near the city.
Most people would much rather live in say Moor park than anywhere near the main city (as an example).