A good reason I won't ever buy, or even take for free, a Nook or any device that can cripple itself or remove content without my explicit action is due to the history of the device. They made a mistake and sold some book, then remotely wiped it off the "customers'" Nooks (ebook reader) and refunded their money. It's like buying something from a store, then the store manager breaking into your home to take it back and repaying what you already bought. Sorry, if there's a mistake made, it's too late to "undo" post-purchase without the "customers'" consents.
Even if devices have work-arounds, there's been so many laws to allow backdoors in computing devices that it's absurd.