http://www.pcgamer.com/2013/02/01/valve-sued-by-german-consumer-group-because-steam-users-cant-resell-games/
Let me reiterate, I don't want game devs or publishers to be hurt but I also think consumers should have more rights and not risk losing content they buy licences to and lose all control as if they bought a CD.
-
This would go along much easier if developers just got ~5% of a resale. Everyone could sell used games and the developers would still get a tiny bit to make them less irate.