the waiting game is never ending. when d400 comes out, the price will be pretty high. so ppl wait for the price to drop. then to some ppl, they wan it to be around 2k then they will buy it. by then d500 or d400s will be releasing soon n the cycle continues.
look at d300s price at feb 2010 in price guides:
$2,420 (Freebies: Lowepro AW 190, 2x8Gig SD, Pro strap) TKFoto: 04 Feb 10 - r0n1n
compared to now which is slightly above 2k, less than 2.1k. that's 300+ bucks difference. d300s was released at end of july 2009. the price was even higher compared to the price as at feb.
to u, a few hundred bucks may not seem to be of anything to u. to others it can be a great deal.