Upload & Sell: Off
Sony were extremely cagey about the quality of the new 24Mp sensor, have been for months, so confident were they. D3X, which is the Nikon topping'd A900 sensor, more clarity but less low ISO style (a personal view), yes, I can see that from four years sensor dev, sure, but by what margin? 5-10%? D800 comparo (paywall) is his enticement built on the D600 IQ, even posted the same image twice, lol.
I have read others say there is not much in it between the two, but who knows just yet? Read and pay LC I guess, if needed fast. If the a99 gets there on the muscular strength of the sensor, that makes life easier for A mount people like me. For some still shooters it has to be much 'better' than the a900 while retaining the character, despite the impressive features. But nothing dissuades from the RX1 appeal.
Fixed lens for many people will be good enough, and prices will drop. High end FL cameras will be ever-ready, hugely capable upon inception in one small single parcel; and make ILCs look like a mechanic's nightmare. It's not often you can say a camera is a new paradigm but we now see two, both fixed lens : RX1 and the Merrills.
I didn't think the US had high desert - 12,000 feet? There are large cities that high in the Himal, that is the starting point there.