And in 2016, STILL the juvenile potshots at Microsoft are being perpetuated. So, I'll take one of my own: I suppose you like Postgres (which is a great alternative) or Oracle (which sucks so hard you probably owe it money now) simply because they're more difficult to use, and therefore must be better somehow.
I used to think that MS-SQL was a toy, but, now, in 2016, for probably 95% of all the database installations out there, assuming you have a choice, MS-SQL is a cheaper and easier to administer than either Postgres or Oracle. This is coming from a guy that has been doing this for 20 years, and have actually holds the title of DBA, administering Oracle, Postgres, MySQL and MS-SQL side by side.
A license for MS-SQL is a whole lot cheaper than an Oracle or Postgres DBA, by the way.