I use my e-reader a lot, as I only have limited shelf space at home, and like to be able to take my whole library with me in the train. For most books, I am fin

I use my e-reader a lot, as I only have limited shelf space at home, and like to be able to take my whole library with me in the train. For most books, I am fine with having them only available on my device. Bit once in a while, I wish there was some way to get the physical copy of the book for free or at a discount when one purchased the electronic version. Not being able to have the physical book to display on my bookshelf and lend to friends and family, although I essentially paid the same price, frustrates me again and again.