Well, that our photos have a price tag is kind of obvious. Everything has one. But I'm very surprised by the amounts we're talking about. I'd expect JenLaw to be extorted for hundreds of thousands of dollars, or at least those photos going for many $k (and THB, some other celebs have much worse photos/videos in this leak). So them going for $130 implies that either celeb sex tapes are really common/cheap in the darknet, or we have no frikkin' clue what's going on out there.
Anonymous extortion threatening to release something that is trivial to copy is not going to work, because there is nothing to guarantee more money will be requested next week, or that the material will not be released later.
As far as selling it, the price cannot be very high, because nobody has that much to gain from being the first with the pictures. It's illegal material after all, so magazines can get in trouble for buying it. Put it in a shady, for-pay site, and with it being illegal material and all, it'd be in a torrent in minutes, so how many times will you really sell it?
If it was, say, a presidential candidate doing hard drugs and cheating on his wife with a man, then maybe you could say that the opposition would be willing to pay for the pictures to be released, regardless of how they were obtained: There'd be millions at stake. A naked actress? not so much.
Well.. this is a black market with no ability to self-regulate. So, the prices are going to be incredibly low compared to their everyday value; to be a bit crude, these are crackhead prices.
If JenLaw's photos were worth $130 or so, that means that any photos that any of us have are associated with a market value. And it ain't that much.