Maybe I'm in an even further minority - I read math books for fun. The books that I read are almost always either Springer books if they are recent, or Dover bo

Maybe I'm in an even further minority - I read math books for fun. The books that I read are almost always either Springer books if they are recent, or Dover books if they are older reprints. With math books, there is significant value in being able to write in the margins - Fermat comes to mind. The amount of infrastructure support required to get that working properly in electronic form (either free-form writing, or LaTeX support) is more than what a mainstream publisher would be willing to invest in. So, for me, it's still paper.