Conspicuous Consumption in Los Angeles

I was in a West Los Angeles parking lot next to where my son takes fencing lessons.  While I agree that this is not a location chosen at random, take a look at the makes of these three parked cars.  From left to right, I see Tesla, Lexus, Tesla.    Why do the wealthy live in Los Angeles?  Is it because this is a productive place?  Are these folks rich because they live in Los Angeles?