What these companies would "sell" would be DRM crusty shit that wouldn't work on my devices. And the 'Authorization servers' would be decommissioned at some unstated future date. Hell, even Microsoft couldn't manage to maintain these DRM servers.

If MS cant, why would I expect any company to properly maintain them?

https://community.spiceworks.com/t/how-to-play-content-prote...

So, unless these are MP4's or MKV's with correct subtitling and appropriate audio, I'm not going to pay a cent here.