Well, I told you exactly what I meant. Regional incomes are the limiting factor in regional housing prices. The ratio of home prices to income is at a historic high on a *national* basis. True, it's even crazier in some regions than it is nationally. LA, where you think things are different, is one of the most out of whack markets in the nation by any metric.
Some areas, like SF and Manhattan have persistently high prices due to some unique circumstances, but even those markets are well above their historical craziness.