I have a close friend who published an engineering text book. He worked a couple of years on it and it was well received in his particular field. The book was pirated within months and is freely available on PDF. It's unfair that his hard work is being used globally for free. So yes, having books shut off sucks but so does piracy.
The lack of empathy in the responses is staggering to me. It's as if the idea that a content creator should be financially rewarded for his or her hard work is some sort of moral crime. Yes, DRM sucks, but what other way can content providers ensure that they get rewarded for the hard work and good content that they provide?
Students usually have the choice of the brand new print edition $$$ that they can resell for $, the ebook edition ($$) that expires after the term and you cannot resell, or fighting for one of the two copies of the book on 2 hour loan from the main campus library. Some professors do not let you use an older copy, and for some classes, they make you do your homework on proprietary publisher websites that charge for temporary access codes. So even if you pirated your book you would still have to pay McGraw Hill their cut to get full points in the class.
Curious how well textbook prices correlate to the maximum federal loan you can apply for.