“Using DRM to combat piracy has many critics, such as Bill Gates and Cory Doctorow. A central problem with current DRM solutions is that although they may make piracy more costly and difficult, they also impose costs on legal users who have no intentions of doing anything illegal. Moreover, because a DRM- restricted product will only be purchased by a legal user, in a perverse sense, only the legal users pay the price and suffer from the restrictions; illegal users will not be affected because the pirated product does not have DRM restrictions. As a result, opponents of DRM argue that eliminating DRM will improve the value of the product for legal users, increase their willingness to pay, and thus increase industry profits.”
http://static.arstechnica.net/2011/10/10/2011-10-10-VernikDRM.pdf
