My wife and I have Nook Colors.
My son reads on his Desktop, Laptop and or phone.
I plan on getting My mother a Nook Tablet for Christmas. She has Macular Degeneration and I think she will like the large fonts available. Right now she reads using a Video Eye System at home. If she is out and needs to read a menu she carries a magnifying glass.
http://www.videoeyecorp.com/
Apache