Isn’t that a variation of “everyone wants to live here”? It’s simply not true. SD County has population outmigration situation going on right now, and a large percentage of the people who are leaving are people who would normally own or buy properties. They are not being replaced by people who made their money elsewhere.
There is some foreign money coming in, but the number of people involved is miniscule within the context of the RE market. There’s nowhere near enough foreign money coming to either town to support pricing across the board.