These companies need to ask them self, is the current DRM working? In the absence of these DRM free copies being sold by GOG, will people still be able to find pirated copies of the movies?
I personally will not buy a DRM version of a movie because I don't want to have to worry about that.
DRM free copies mean that I can copy the movie to my tablet, smartphone, ancient PDA, pop it onto a flash drive and connect it to the USB port on the TV and play the movie, or put it on the NAS and stream it to any of my streaming capable devices without having to worry about compatibility.
With DRM, you are locked into a specific application and if the service ever fails or they decide to end the service, then your content no longer works, (this has happened many times in the past (including with one of the largest companies on the planet also killing DRM servers http://boingboing.net/2008/09/26/walmart-shutting-dow.html
Overall, all the DRM does, is make things less convenient for paying customers.
DRM has failed the second it causes any paying customer to have trouble playing the content they purchased, on any device they would like to play it on as compared to a DRM free copy.
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