Don't get me wrong - Postgres is awesome and I would happily use it for any project. I'm not sure Postgres is easier to manage than Oracle and places any less m

Don't get me wrong - Postgres is awesome and I would happily use it for any project. I'm not sure Postgres is easier to manage than Oracle and places any less maintenance overhead, but YMMV. Its just that RAC is a special technology with no equivalent on other DBs. It is usually placed where you need load balancing on the DB level. It normally has very high availability that is a good fit for mission critical DBs. I hate seeing good technology wasted, but you are right that if Postgres is already there and works well, there is no point in moving anywhere.