This is what happens when publishers are afraid of new media and they want to secure their bread. But it's not happening. Most of the people who "share" books

This is what happens when publishers are afraid of new media and they want to secure their bread. But it's not happening. Most of the people who "share" books (they are hinting on piracy, if I am not wrong) don't buy it anyway. All they are accomplishing with this is - scare away the users who buy it. Not to debate weather it's fair or not - but generally an "expiring" book will have a psychological effect on customer for sure. And this is not the best option to go for.