I second that. I found it by far the most pleasant database to work with, including its tooling. Postgres is probably second. Too bad SQL Server is so expensive.
You can google it, but the short answer is Enterprise Edition is on the order of tens of thousands of dollars per CPU.
Maybe they'll change it at some point. I believe if SQL Server was free, it would dominate the business. I last used it 7+ years ago and back then it was (from my subjective experience) better than Postgres is now. And I love Postgres. But SQL Server was a dream to work with. Feature rich with amazing tooling. You can get most features in Postgres with plugins and manual work, but SQL Server does it all for you.