As a rule of thumb, Windows devs are mentally locked into Visual Studio and GUIs. They do not want to touch the command line. Open source scares them because it's libre & free. It's like some freaky movie where the Alien Software got downloaded into human brains and started issuing commands.
It's like some of these guys don't do computer programming any more. They program Visual Studio using C#. Of course, Visual Studio ain't bad, but the Visual Studio users are pretty rabid.
They would fork over thousands for their addiction.