I have had my Kindle for almost 2 years and love it. Books were taking up a LOT of space in my house and getting hard to resell for even a $1.
I spend VERY little on books as there are so many free ones available. Right now I have about 100 books waiting for me and they were ALL free. The authors that I just must buy get read right away of course.
I doubt if I spent $50 on ebooks last year and I haven't picked up a real book to read since getting the Kindle. MIL still gives me books and I just pass them on to friends right away.