Launch course smart. it offers subscriptions to more than 7,000 textbooks online. college kids on the go can download the textbooks to their laptops, their ipods, their iphones. >> we actually ran a study on this and found that those books are not priced to be fair to students. >> the make textbooks affordable campaign compared used textbooks to e-textbooks. here is what they found. on average students pay $109 for a used textbook. students can then sell that book back for approximately $73. so the total cost of the used textbook is $36. on average, students pay $73 for e-textbooks. e textbook...