As an author, I have to add pictures to my books that are not only unique, they need to really capture the moment. I bring my waterproof Nikon camera with me to the beach, on vacation, anywhere a stunning moment needs to be captured. You never know when you will have the opportunity to get that perfect picture.
One of the reasons I find this to be an incredibly thoughtful authors and writers gift, taking pictures with my phone just doesn't capture the detail this camera does. Besides, my phone can not be submerged underwater to capture marine life.