What follows is an unpaid commercial advertisement...
Between now and Tuesday, if you buy a minimum of 3 books from Nightshade, you'll get 50% off your order.
This is not some nambypamby, oh-wouldn't-it-be-great-if-Heinlein-were-still-alive-and
-people-still-wrote-like-E.E. Smith publisher. No, these people publish Nick Mamatas (and let him work for them, too).
So you could get Nick's Kerouac-meets-Cthulhu novel Move Under Ground in hardcover for $12.50.
Or you could get Leviathan 2 (because though you read Leviathan 3 every day, you never got around to getting the earlier volumes) or The Thackery T. Lambshead Guide to Eccentric and Discredited Diseases or Album Zutique, all edited by Jeff VanderMeer, whose first novel, Veniss Underground is also available and very much worth owning at full price, never mind 50% off.
Or then there's Zoran Zivkovic's The Fourth Circle, of which Tim Pratt wrote in the June Locus: "...Zivkovic has created a marvelously inventive work of science fiction with metaphysical underpinnings. He weaves mathematics, the multiverse, alien intelligences, otherworldly religions, Buddhism, Hindu mythology, artificial intelligence, Faustian bargains, literary pastiche, humor, and historical figures into his narrative. The writing is wonderful, sometimes dense and forboding, sometimes light and allusive, never less than accomplished, and always well-suited to the artistic task at hand." (And it has a cover by K.J. Bishop!)
Or you could have a wonderful time with Kage Baker's Empress of Mars, chuckle your way through Rhys Hughes's New Universal History of Infamy, or treat yourself to one of the best short story collections of the past twenty years, Things That Never Happen by M. John Harrison.
50% off. Brand new books. Magnificent publisher. Free market economy. Commodify your fetishes. Tomorrow a giant comet might slam into the Earth, rendering Larry Niven, Jerry Pournelle, and the rest of us completely past tense, and what good will your paid-off credit card be then, huh?