I have a kindle, and I like it for traveling. It's lighter than a stack of books and I can enlarge the print if I've left my reading glasses somewhere, and I can read in dim light without disturbing anyone. But I don't like having it suddenly freeze up and have to be rebooted.
But a real book works without being charged. It doesn't suddenly freeze up and refuse to let you turn the page. You can easily check many pages behind without any fuss. You can share it with a friend.