While it is understandable why nobody wants to leave San Diego, some might!
Here are more ideas on where to go:
https://www.realtor.com/news/trends/the-cheapest-metros-for-u-s-homebuyers/
https://edition.thrillist.com/s/underappreciated-american-cities-efff2ad8275f4c84
https://edition.thestreet.com/s/coolest-towns-retire-ef8d340b4d3f4d2c
https://www.travelandleisure.com/trip-ideas/best-small-towns-in-america
https://www.farandwide.com/s/best-small-towns-united-states-e6a21b7c07fb4035
Or just check my history of suggestions here:
The English language is slippery. Cheap is not the same as inexpensive is not the same as value. I would add that a low purchase price is rarely the same as low carrying costs.