Yes it has -- that was the whole point of getting it.
I couldn't read as much or as often as I wanted to, and buying the reader enabled me to be able to get more books (without having to fuss over where to store or stack them), for less money (I used to spend $10 - 15 per paperback, $15 - $25 for hardcover), and much more portable and accessible.
I'm still not reading as much as I would like, but I'm reading a lot more than I was before!