By: lollusc

I would guess (although I have no statistics) that unless you are selling blockbuster books, the number of sales you would lose to people who don't buy DRM protected products on principle, or who are concerned that your DRM implementation would cause difficulties with their e-book reader (which keeps happening to me), might outweigh the number of sales you would lose to piracy.

Especially given how easy DRM is to break (I've done it myself to get books to run on my reader and I am no genius) - it's not going to stop real pirates who really want your books.