Windows Is Not Free
Three years ago, I read one of the finest articles on the problems concerning the difficulties faced by the advocates of Free and Open Source Software (F/OSS or FOSS), and the endless efforts to get people to give F/OSS an opportunity to work for them.
The article is "Windows Is Free: The Impact of Pirated Software on Free Software", along with the follow up article by the same author, "No Really - Windows Is Free."
Commonly, people first gravitate to LibreOffice, OpenOffice, Linux, the GIMP, and other F/OSS applications because they are, almost always, gratis. That is, free of a monetary cost. But, as is persuasively argued, for a large number of people, so is Windows.