If I publish a book, and I have a room of 50 people who want that book, generally speaking, 40 people will want the print book and 10 people will want the e-book.
I consider my job to be the intermediary between the author and the reader. Obviously, in addition to all the editorial production, marketing, accounting, and shipping work we do, we also try to make sure that people can access the material in the formats they want. We try to publish the books simultaneously in both print and e-book forms.
The e-book market has basically stopped growing and seems to have reached its natural limits. My own perception of it, having published books for the last 10 years and having seen how people consume them, is that, generally, you'll see this kind of breakdown: about 40 people will want the print and about 10 will want the e-book.