I went to ebooks starting with Sony 505, and haven't looked back.
Sharing is easy. I buy my Mom an eReader (an H2O, she appreciates the larger/adjustable font size), and other people have readers or tablets.
If someone wants to browse my library, I fire up Calibre, and they can simply scroll and click to see covers and descriptions. They can sort multiple ways, they can browse the covers, do searches, ... Who needs books on a shelf?
Library books are much easier, I don't even need to leave my chair.
I can appreciate that some people like pBooks and have their reasons; personally, they don't appeal to me anymore.