My new favorite saying: "It didn't cost too much, you just bought it too early." $900 might be a bit high right now. 2 years from now it'll probably be the "normal" price. Will you still want one in 2 years? Will you have found one for $700 in the mean time? Will it have been worth the wait?
Honestly, $200 "extra" would be pushing it for me, too, but I have been known to pay a more than rock bottom, if I really wanted an item.
-- Sam