I really like e-readers and e-books, mainly for the reasons commenters pointed out (much lighter than physical books, configurable font size, etc..). But there are big downsides too. Mainly the market discourages ownership on the one hand and encourages piracy on the other hand. The result is that DRM protections are everywhere and some authors like Jonathan Lewin were burned up by e-book piracy and reverted to only…
Not everywhere, in Poland ebooks are only watermarked, there is no DRM protection and you get epub/mobi/pdf copies of every ebook you buy.