I have had a Kindle for two years and love it. I didn't think I would, as I really really like holding a book in my hands and turning pages. However, with my Kindle I can change the font size, order a book at midnight and get it in one minute, and much more that I don't even know about. (There is a keyboard that I don't know what to do with. :) ) I have about 80 books.
The BEST thing is that when I have already ordered a book, it tells me I already have the book....I tend to forget if I have read a book. Sad, but true.