CloudBee- do you know about the Scholastic Warehouse sales? I'm not sure if there's one in your city, but you should check their website for "Customer Appreciation Warehouse Sales" and see what you find in your area. Most of the books are 50% off the Scholastic price, which is usually less than the Barnes & Noble price, though some are only 25% off. They may be over for the season, but they'll have another one in May. They are geared towards teachers, but they are open to the public.