my freshman year, i paid close to $1000 for books. most were used for >1 semester, so the average bill was $400/sememster. But then again, jr year, another $800. save your receipts, you can write them off on your income tax return (or your parents if you dont file independently) im only taking one class this semeser, that book so far was $46.60. (its being sold in parts at Procopy...only half the book has been released...)
of 4 years of school, i can think of 4 books that were not hardcover; Civ 1 and 2; Chemical Engineering Vol 1 and 2. The book i bought for this class isnt even published, but it was still $50. because it isnt pub., i cant go online and buy it.