Gamestop flat out punishes people for buying new. If you buy a new $60 game and don't like it, you can return it for $20 worth of credit. If ypu bought that same game used for $55, you could return it for $55 in credit.
I don't think Sony's patent is so much anti-consumer as it is anti-Gamestop and consumer-indifferent.
It's the same as intrusive DRM; they aren't trying to hurt the consumer, they're trying to hurt someone else, and the consumer is just collateral damage.