Hmm, this, or a Nikon D600 with a nice lens?
At that price I think the RX1 would need to have the D800 sensor or a really exceptional lens in order to appeal.
The sensor that sits in the D800 is a Sony sensor, so chances are that they will be very similar.
The rumour is its the 24MP sensor which looks like its going to be released for half the price in the D600.
My point was that recently other manifacturers have used fixed lens cameras as a way of offering tech to the market(X100, G1X, DP2M) at a lower price without damaging the value of there interchangle lens models.
Sony could potentially do that by either offering the RX1 with either the D600 or D800 sensor at the same price as those cameras without a good lens.
As it is they seem to be banking on the space saving alone being a big enough draw to get people to pay the same price and lose alot of features for smaller size alone.