I like your reasoning and its a large driver for my I'm moving away from SQL Server.

If I get to a point where I actually need the features, that SQL Server or another commercial RDBMS has, then I have a good problem. It means my business is doing well and I may be in a position to consider a changeover.

I used to fret about features that frankly don't really matter when you are starting out. Coming from an Oracle and SQL Server background, I wouldn't touch MySQL but Postgres hits the 80% mark quite easily.