Today’s Book…is more than a book

It’s a soundtrack too.  Did you see this article in The New York Times about ebooks?  Part of me knows this is about sales and appealing to a large mass of people who may not read often.  And publishing is a business which means exploring possible revenue sources with new technologies.  I’m not against a concept like this and props to the person who came up with the idea for this company but why can’t books be books?  Why do they have to be and do something more?