At my visit to Lenscrafters today, I mentioned to the optometrist that I'd been able to put off bifocals due to my Kindle's large font. He commented that he had a Kindle and an iPad with a Kindle app, and that he loved them because he traveled a lot. When I went into Lenscrafters, I made similar comments to the lady who helped me pick out glasses, and she remarked that she had a Nook. And when I went back, I had my Kindle out, and the guy who helped me mentioned that he had a Kindle too.
I don't think I've ever met so many owners of e-readers in one day before. No wonder sales are climbing-- everyone's got one of these things now!