Had the highest starting bid, and the highest final bid. Not to mention that it was the spotlight of the show and was the only piece that bidders were allowed to come up to the stage and actually look at.
Cosmic giving a few words about the painting only add to the attention it already commanded.
I was pretty tempted to break my hard limit on bidding there, given the cause, but I have the sneaking suspicion that the price would keep going out of my reach no matter what. The buyer *really* wanted that piece, it seemed, and with good reason.