For one VM, EBS with backups gives you business continuity.
You could get manual failover with a single writer replicated managed Postgres setup and a warm VM.
That’s on the order of a thousand a month for a medium workload. It’s probably a 10x markup vs buying the servers, but it doesn’t matter if it saves an employee.
It doesn’t save employees. Over-complicated infrastructure doesn’t magically appear out of nowhere. Someone has to setup and maintain. It’s expensive.