The Friday File: This past Tuesday, a Claude Monet painting titled Haystacks (of which there are 25, most of which are in one of 15 museums) sold for $110.7 million, a record price for a Monet and for an Impressionist work. Separately, on Wednesday, the sculpture Rabbit by Jeff Koons sold for $91.1 million, a record price for a work by a living artist. The rich are doing OK.