$120k is maybe peanuts for a copyright troll firm backed by millions from investors. As long as investors are willing to put money into these kind of firms, a lot of lawyers will be seduced to keep up the trolling. They need to make a living too, and it's easy money.
FTA they are having problems posting a bond on previous $34k fee awarded against them.
Righthaven's entire model (last I heard) got fairly gutted in another case where it was found that they actually didn't even have standing to sue infringers. (It was found that Righthaven can't just acquire the "rights" to sue, without acquiring the actual copyright)
I can only hope this is over quick and does not become the medusa case that was the SCO case where you thought it was over but just kept coming back after many deathblows.
And if it will, we'll be able to follow the proceedings along with excellent comments, on http://www.groklaw.net/