alt Hacker NewsGoG is also DRM free, so if GoG dies it's not like you'll lose access to your games. Even if you lose the files, archives will exist. Plus, if you're really that morally opposed to file sharing, you can always put it on a NAS or flash drive. Heck, put it on a bluray if you want to
Plus GOG allow people to download games and store them on a hard drive.
UT99 can't be bought anymore (though I think Epic now allow people to share it freely), but I can still download it (for now), and access my archived copy.