Zardnaar
Legend
I think supply and demand is most of it. Here in SoCal we keep getting more and more people, but the housing isn't being built as fast as the increase. Regulation is stifling much of the growth we need in that sector. As a result, we routinely have several people putting in bids at and over asking price on pretty much every house sold. That's driving prices up very rapidly.
You kind of expect California, Seattle, NYC to be crazy though with house prices.