ChrisSZ: When GOG is dead I will probably switch back to "Steam + crack", basically what I did before I found GOG to make them archiveable.
DrmSucksMaster: Can't argue with that. That's what people did before GOG, and that's what people will do once GOG stops selling DRM free games.
I think it's more realistic for GOG, should it introduce DRM'd games to its store proper, to make DRM optional, much like the Humble Store. It doesn't make sense to
completely alienate your audience. Keeping DRM-free games around will make people less likely to jump ship.
To me, it feels less like GOG has completely abandoned the concept of DRM-free gaming and more like it's trying to have its cake and eat it too; profiting indirectly from DRM'd games while still technically being a DRM-free store itself. Which is better, but not by much.
That being said, as others have suggested, it's not a bad idea to back up your games if you haven't already (I mean really, what are you doing buying DRM-free and not backing up your stuff?). GOG's future feels... less certain than it used to, a feeling I hope is unjustified, but it's better to be safe than sorry.