I think it's a steal at that price! I have compared mine to many dacs and could never find anything under $1500 that I could say was better (I listen mostly to classical). Of course, you have to add the expense of a good usb converter but still, it is a bargain.
P.S. It was called to my attention that comments about this seller are not allowed. You can take my comment about the value of the D18 regardless of who is selling it. I understand it is being discontinued so discounts around the web on remaining stock are not surprising. In the $500-$600 price range the D18 would be a great value and hard to beat at twice the price.
Edited by Chodi - 9/1/14 at 10:58pm