My sprint android phone had a built in kindle app that I had never explored until I read Micheal's note on the Kindle and his links to the availible gun books. I found it quite ease to down load a few of the free books onto it. Will come in handy when I am stuck somewhere waiting.
Steven,
I love having my library to read over and over. Personally, I would never replace any of them with a digital only version of them. However, If I could get a free or for a small charge a digital copy, I would like to have that in addition to the books. It looks to me like a sample could be used as a preview. When the potiental customer sees something he likes, he could instantly download the pdf and recieve the hard copy by mail.
Just my two cents.