This doesn't seem realistic. If they could afford to move to SF they could also afford to fly to SF to visit. The author would already see them more than once

This doesn't seem realistic. If they could afford to move to SF they could also afford to fly to SF to visit. The author would already see them more than once a year. Selling the east coast house and coming up with an extra $400k (wild guestimate) to move to SF is not spare change most people have lying around. just sayin'