Why is it that you can get these really huge phone books that have at least 1000 pages in them, no shipping cost at all, 100% free right to your door and they weigh about 2 pounds each yet you pay at least $10 for a text book of about 200 pages? Why is it the phone book is free when it weighs 5 times more and has 5 times more pages and it's a brand new book yet if you bought a text book with that much pages you pay $100 or more for it brand new or about $20 if it's a little beat up? Why is that?