I’m not exactly sure what’s going on, but it appears there is some type of authorization that goes on with reselling PS4 disc based games. More info below.  

http://www.neogaf.com/forum/showthread.php?t=712765

Originally Posted by Sony

7. Resale
7.1. You must not resell either Disc-based Software or Software Downloads, unless expressly authorised by us and, if the publisher is another company, additionally by the publisher.

Also

Originally Posted by Sony

4. Software is Licensed
4.1. All Software is licensed, not sold, which means you acquire rights to use the Software, as described in these Terms, but you do not acquire ownership of the Software. If you do not comply with these Terms, we can terminate your Software Licence which means you will no longer have the right to use the Software.

Source : http://uk.playstation.com/legal/detail/item655893/Software-Usage-Terms/

Kudos to Playeressence.com for the article and hears up

http://playeressence.com/you-cant-resell-ps4-games-without-sonys-express-authorization/

Further proof that PS4 also had DRM and that they were hypocrites all this time about it?!?!?

the wording in those sections has not changed for years.

edit:  Gaf has already locked atleast 2 threads on this.  The wording has not changed for years and is found on ALL video game TOS

WTF.....?

Except you know. The PS3 had the same software usage terms.

So they lied and bluffed their way through E3?

There's really nothing to this, just lawyers getting their language in. This wording has been the same for years. Ever get a system with a pack-in game that says "Not for Resale"? Yeah, they're resold in GameStops.

This is one of those rules that has always been there and never enforced. Do you think every sports bar in America has "expressed written consent" to show sporting events?

Someone should tweet Shuhei Yoshida about it (@yosp) to get official word, but I'm sure this is nothing.

So rather then contribute to the meaning of this verbiage and realize the terms always stated this, an Xbox fan is the first reply in with DRM crap again. Oh yeah, here is it, an eye for an eye...