> If you have a mortgage, then for a marginally expensive home ($3M in the bay), a 20-year mortgage all in at 3% is $21k. Not only you are comparing a “small s

> If you have a mortgage, then for a marginally expensive home ($3M in the bay), a 20-year mortgage all in at 3% is $21k. Not only you are comparing a “small suite” with a probably much larger $3mn home but you’re comparing renting with buying over 20 years. You should count only the interests paid.