I was introduced to digital books by someone after they learned that I was having difficulty reading paper books.
It was a revelation to me and I haven't looked back since. Not only can I increase the font size and contrast to suit my eyesight but I can have hundreds of books taking up a very small space.
I still buy lots of paper books – but I don't read them. I scan them and create digital books that I can read more easily on my reading device.
During my learning process I found several sources of illegal ebooks. The quality of these is variable – sometimes very good and sometimes awful. Nevertheless, even the awful ones can be edited to near perfection when I have a paper copy in hand to refer to. I will often do this, download an ebook and if I think I will like it I go buy the paper book so I can edit the digital copy. I am very fussy in this respect and like good proof-reading.
I share them with my friend who is blind who uses the text-to-speech facility on her computer. I bitterly resent the draconian restrictions that come with purchased e-books. They do not allow text-to-speech amongst many other things.
So if these actions make me a criminal so be it – I feel that if these publishers won't play fair with me then I won't play fair with them.