According to Nicholas Lowry, the president of New York’s Swann Galleries, when times get tough, the filthy rich get bidding. Because most Americans have found their pocketbooks losing weight faster than Jenny Craig over the past few months, auctioneers are ridding themselves of desirable swag for smaller price tags. I suppose we’ll see tomorrow morning at 10, when the bidding starts on rare—not to mention exorbitant—photographic literature and photographs at Swann.