Now with audiobooks I read many non technical books while I do those types of exercises I couldn't enjoy before. If a book is not great I dont find it a waste of time. The combination of audiobooks and exercising is the right amount of information density for me to enjoy the moment. The result? I exercise much much more now.
Also I started to use the local library for audiobooks. Comparing to the effort of borrowing paper books or device restriction of borrowing ebooks, borrowing audiobooks is just a much better overall experience.