The question is this: did the work sell so well because people knew these were major bargains from many well-established artists? Or because they were $50? Or because they were donating to a good cause? Or all of the above? A couple of us half-jokingly discussed pricing everything at our next open studios at $50. But I don't really think that is a good idea.
What is a good idea is turning in for the night so I have enough energy to clean up this disaster area tomorrow morning.