Upload & Sell: On
These Sony (and to a slightly lesser extent, Nikon D600/610 and D800/e) prices and the head start in market access are going to put Canon in a similar position to what Nikon was in due to its resisting so long to develop FF bodies. By the time Nikon did come out with FF, Canon had so many generations, that FF used bodies (especially 1Ds and 5D) could be had pretty cheaply, further disincentive to buy a new or exorbitantly priced used Nikon FF.
I'm really kind of surprised that Canon has so easily relinquished their lead in high MP sensors. It seemed the Nikon D3X was sort of a fluke against the 1Ds3.
Inevitably, this will drive down the price Canon can introduce new FF models, whether or not they are high MP/DR or not.
I'm not putting Canon down, but all this price cutting is making the Sony a7R and Nikon D800e more appealing, rather than wait indefinitely for Canon to release an equivalent (or game-changing) IQ camera.
However the cake is cut, we consumers will come out ahead.