I'm not sure what you mean by "traditional publishing" but in many cases the books that are being written are primarily sold as ebooks, and part of the larger scam is that consumers can actually buy these books months before they are written with the promise of constant updates. I bought an Apress ebook once that was barely started when I purchased it, but that was not clear at the time. The actual finished book was nearly one year later.

But if by "traditional publishing" you include electronic publishing, then I'd agree, something is probably going to change soon. It's clear that you can get much more education in today's world in ways other than books.