Kindle me this..

Which is the better e-reader? The only reason I am thinking about a toy like this is that I saw the Barns&Noble Nook and was really surprised at what I saw. Not only does it look neat, but it also has TONS of free books, one saleswoman claimed. Well, I have looked at their website and so far, not a lot of books are free, nor were they as cheap as I had seen. When I want a book, I usually get it for 3.50 at Montclair books. Ok, so most of these books are used, but hay, if they are readable, then they are good.