IF Apple releases new ACDs at MWSF, is it likely that there will also be a price drop? What has happened historically in this regard. i.e. say they update the 23" to a 24"; is it likely to sell for less than the current 23" is selling for? Reason I ask is that I need a new display, but only have about $750 to spend. Refurbed 23s are available for that price, but I'm not sure whether I should wait another week and find out if a 24" is released.