razorback - They don't sell the Kindle 1 anymore, I don't think (except used by previous owners). The main difference between Kindle 2 and DX is size. I like the size of the K2 because I take it everywhere. If you're only going to be reading it at home... I don't know if I'd even get it then. The K2 is easy to hold (I have a cover, so it weighs more) but I don't how much heavier the DX is or whether it would be taxing to hold for long periods. I don't see the benefit of more memory 'cause you can always store extra books in your Amazon archives. I'll let you know if I feel differently if I ever reach the 1,500 book capability of the K2. Why are you considering the DX? That might help me answer better. Or go to a Kindle page at Amazon and read in the discussion forum. Or the customer reviews on the DX page.