It became a lot easier to move across the country with the rise of cars and commercial flying, and CA is a really nice place (from a climate and natural beauty

It became a lot easier to move across the country with the rise of cars and commercial flying, and CA is a really nice place (from a climate and natural beauty perspective, plus the thriving industries). So it may not be the only reason, but I think if prices were equal, many people would choose CA over Indiana for example, if they were looking to move somewhere new.