Honestly, don't care about the cost or the environment when it comes to books - I can simply not get over losing the touch, feel, smell, and sense of progress (being able to visibly see how many pages are left and working through to the end) that comes with having an e-reader. I've tried it many times, and it's a lost cause for me.I personally really LOVED having the e-reader Now I have the iPad so I've been reading my books on it. Which I love even more. I'm someone who really enjoys a book, going to the bookstore, the smell, etc so I was thinking it might be hard to get used to reading my books on a screen but nope...was fairly easy. Now I go browse the bookstore and then go home and d/l the book for much cheaper.
I personally highly suggest getting the Nook! Plus it's so much better for the environment!
I can safely say I won't be joining the e-reader brigade.