I disagree with your statement about the comedians, unless you're talking about a full length recording that is being sold on. But for those people, you go after them in the courts for piracy after the fact.
Most of the bits captured are/will be out of context and useless. My personal desire to "record" is short "i'm here" clips or pictures. (Music productions, clips, photo for the show) TM claimed "there was nothing extra" on the ticket. (I contacted them but did not try to pull a refund as that I know that TM is going to pull the "well this is the venues' issue")