Unless it's enough money to spare to pay someone to manage Postgres on the server and scale it up and down as needed, this isn't that useful a comparison. As a

Unless it's enough money to spare to pay someone to manage Postgres on the server and scale it up and down as needed, this isn't that useful a comparison. As an avid self-hoster, by all means, self host Postgres! But self hosted Postgres is not the same product as managed Postgres.