Question: where is all the money coming from?
have you looked at the monthly mortgage on a $1 million house at current interest rates if you do a 10 yr interest only?
That will tell you where a lot of it is coming from....
After the last bubble burst - the fed almost killed all the "alternative" instruments for home financing beyond 15 and 30 yr conventional but did open up more options for low income, 1st time, DEI buyers, etc.
Now the market is moving back to offering more options like interest only, variables, etc. more often to attract customers and when combined with low or non-existent interest rates - buying a home can be pretty cheap by comparison to what it would have been a buyer been forced to do a conventional.
Plus as others have said - if you move to a place like Texas from either coast - our home "prices" seem really cheap and you can get a lot of house for the money, especially when you have a lot of cash from a high sale price relative to homes here.
But I have had a few conversations with people who migrated to Texas from out west and were able to pay cash or mostly cash for their new home - but didn't realize until they seriously started looking here that they would have the equivalent of another house payment for their property taxes.
Many of the other states with high home values also have locked or limited increase restrictions for property values - so someone living in a house in California for the last 15 years may have seen their house quadruple in value but their taxes barely when up because of regulations.
Then they come to Texas and start looking for a $1+ million home in Ft Worth and find out they $30k a year tax bill for the pleasure of acquiring that large home in our state.