Comment by PawgerZ

No, it's not. It's more like an online bookstore mailing you a copy of a book for free. The only catch is that they also sent a book full of ads and directions that say: after every page of the book, look at an ad. Then, when I receive these, I don't even take the ad book out of the package, read the actual book, and send them both back.

You can imagine why Amazon never decided to go with this business model.