West Virginia's median home value was $99,000 in September 2019.
California's was $550,800.
The income that would buy you a house in West Virginia would only get you a little more than a fifth of a house in California.
Land costs more in California than in West Virginia and there are more restrictions on building.
A California would counter the "settled culture" argument by pointing out that more people have wanted to live in California than in West Virginia.
Personally, I make $200k+ in D.C./B-more area, if I could get paid $90k+ in Michigan? Wife and I would be gone tomorrow..