There used to be a theory that FF cameras would come down in price, to the point where there would be no point in buying crop gear. The "crop is a stopgap until sensor manufacturing technology catches up" theory.
Now that the D800 and 5D3 prices are out, this doesn't seem to be the case.
FF is going high-end. We get a fancy sealed body, 100% viewfinder, top-notch autofocus. It doesn't look like we'll get a FF sensor in a Rebel-like body, selling to the masses at Bestbuy, any time soon.
Not passing judgement on this... just an observation.