So lots of people with lots of money are moving there and buying homes? Not sure what you can prove/disprove from the map.
Or are they trying to sell at this price point and not selling? Stats revealing what homes are selling for and who is doing the buying (wealthy foreigners?) might be more useful.
Not near as bad as Vancouver BC.
I have an uncle that is a prominent real estate attorney in LA, and he has told me that the market there has been flooded with Asian money in recent years. He says that that a lot of prominent Chinese and Korean corporations/investment groups are sinking substantial money into the California market to diversify their portfolio and also hedge against economic uncertainty there. A Korean company just built the tallest building in California (the 1,100' tall Wilshire Grand), and I believe there are several other huge projects backed by Asian money under way. He also said that the Chinese economy has created a lot of new wealth, and that many Chinese are paranoid about government takings due to China's communist past. Their LA/California homes are more of an investment/safety net than they are a vacation home.
Another factor to consider in California is just how well the top 5% or so are doing out there, not to mention all the old money and vacation homes of the world's elite. All those Silicon Valley millionares now have multiple homes, as does everyone in the entertainment industry, and general business. My uncle has a house that he stays at near his office in Century City during the week, and a weekend home in Pasadena. It's not unusual for the wealthy in LA to have two city homes and a Malibu/Santa Barbara/Monterrey beach home. Just a completely different world from what people in Jacksonville know.
As has been said, California is an incredible place for the well off, but difficult for even people that are considered upper middle class in Florida.