Azdul
Magister
Technical issues can be solved, stupid laws are the main problem.And someone, at some point, might want to examine multiplayer FPS from the early 21st century, and he won't be able to get any first hand experience of some Battlefield games just because the publisher decided to shut it all down and it had always online DRM.
Rockstar can shut down GTA 3 reverse engineering GitHub repositories through DMCA, and doesn't need any proof that the code is illegal. Copyright length is being extended each time Mickey Mouse may become public domain. Congressman Sonny Bono even proposed that copyright should never expire - fortunately other Republicans do not have income from song royalties and had not supported him.
As long as the law is as it is, part of digital cultural heritage will be lost forever.