it's Malibu, dude, just a little ways from where I live (in my rented rat hole).
They have a place there called Carbon Beach - it's one of the top most expensive beaches on earth.
all the moviestars live in Malibu.
the prices will never drop, hence the "bubble" effect doesn't apply.
main reason is: there's too many millionaires in the world. and too many successful idiots.