I'm not sure it should be based on cost-of-living at all. If it is, then you're middle class while living in SV, but all of a sudden rich when you sell your ho

I'm not sure it should be based on cost-of-living at all. If it is, then you're middle class while living in SV, but all of a sudden rich when you sell your home, collect the equity, and move to Montana. It should be enough to say, only rich (or soon to be rich) people can live in SV.