Each year, thousands of rare books are sold for hundreds or thousands of dollars each—and often much more—and many of those books are clearly science fiction, fantasy or horror. In 2010, a rare and beautiful 19th century book, Birds of America by John James Aububon, set a new record by selling for $11.5 million, but a copy of this same book sold last week for a "disappointing" $7.9 million. (Such a bargain!)