I would rather read more books online than reading paper ones.

Instead of paying $30 for printed book, I'd pay $5 for online book with no ads.

Paper books are so one-way communication. Online books are interactive with 2-way communication abilities.

Picture is worth of 1000 words. So paper books now add images. Now video is worth of 100,000 words. What's wrong in adding Videos in the book?

And most importantly, I cannot search something in paper books. That's the single most reason all paper books should be converted into online books. That advantage surpasses all these negligent disadvantages by huge margin.

My $0.02s of course!