A colleague of mine was telling me the other day that he visited the Neue Gallerie in Manhattan and recommended getting the audio tour (which I never do), not necessarily for its insight into the collection, but because it is narrated by Ronald Lauder, the main benefactor of the collection, and gives some perspective on how a billionaire collector looks at art. There are passages, apparently, along the lines of--"I saw the painting, and I knew that I had to have it, whatever the cost. I approached the dealer, who said that a major museum was bidding on it, but that if it didn't work out, I could have it, and then I spent two sleepless nights thinking of nothing but owning the painting..."