You would still have to purchase the Windows license. Also, why would you run say something like Redis, on Windows through a compatibility layer ... when you c

You would still have to purchase the Windows license. Also, why would you run say something like Redis, on Windows through a compatibility layer ... when you can just run it on Ubuntu or Cent instead? Sure, if you are already committed to Windows then that makes sense. But if you are starting fresh then you don't choose Windows, and that is the dilemma MS is facing.