I guess it depends. We are migrating away from Oracle towards Postgresql. For Oracle you quickly need enterprise edition or flaky third-party software for basic features lile replication. We could hire several dedicated DBAs on Postgresql for that money.
And the licensing is just too idiotic, with no list price anywhere. Usually takes a month to get a quote for us. Not to mention the client libraries and how cumbersome they are to deal with.
Good riddance.
