I definitely enjoy reading a physical book over digital.
However, with that being said, my job requires me to maintain a large number of manuals and publications which are frequently revised, and updated. I'm very thankful that they are all digital because all I have to do when an update is issued is hit the sync button and it's all taken care of. Likewise, I always have to carry these manuals, and having them digital makes it MUCH easier. If not for that I'd be hauling another 30-40 pounds worth of books/papers around.