In spite of those that contend otherwise, the eBook is the way print publishing is going. The advantages of eBooks far outweigh their printed predecessors in a number of ways. For example, cost. Printing books is already expensive and is only going to go up and up. Such are the costs to print a book on paper and then ship it. No such costs for eBooks.
Search. You can't search a printed book, but you can an eBook. From a scholar's point of view, the eBook is the obvious choice.
Group participation. Again, the eBook has it all over print. The ability to engage an infinite amount of participants in dialog over a particular passage or sentence is already being used by teachers.