Yeah, it can be a little mindblowing coming from the SF market, but just about any city[0] you can name has a couple of 10,000 sqft houses on the market right now. Sometimes they are pricey [1], sometimes less than a starter house in SF [2].

[0] https://www.redfin.com/city/10943/MN/Minneapolis/filter/prop... [1] https://www.redfin.com/NM/Albuquerque/Coyote-Canyon-DR-SE-87... [2] https://www.redfin.com/NM/Albuquerque/800-Salida-Sandia-SW-8...