More modern Pagans place their BoS in their computers where they can use photos to enhance the book and make it easier to read and edit. This is up to you. However, there is much to say about the handwritten BoS. For one, by handwriting the book, you are putting much more thought and energy into the book and it does kind of enhance the experience of the Craft as a whole. Also, if you have any artistic talent, you may wish to create the book from scratch and decorate it as you please. This ensures that no one else will have anything like it and it will truly be an original.
Some groups get together every now and then to swap books and copy from one another.
This really is a lot of fun, and a great learning experience. Each Pagan or Wiccan can have their personal BoS and if the coven or group wishes, have a separate one just for the group.