It seems baked into the concept of "reselling can't be done at a higher value" that transfers would have to be limited to a platform where that sort of thing is prevented. For example, if the reselling market is just "add your ticket to the pool for people to buy, and if someone does, they get the ticket and you get the money", there's no way for the sellers to contact the buyers, so I'm not sure how you'd envision an out-of-band payment occurring.