Upload & Sell: Off
Whats the chances that they will "upgrade" problamatic D600 users to the D610?
Mine seems to be clean so far, but time will tell..
unless you haven't taken more than 100 frames, you will see the "problematic" specs early in the life of the camera. It gets better over time, since there's only so much fluid that can be flung onto the sensor.
My D600 got wet cleaned at 500, 1000, 2000, 3000, 5500 frames, and each time it was less. In fact, after 3000 frames, there was only one spec that bothered me, and it rarely showed. I see no reason to upgrade or even send it to Nikon before the warranty ends, as it works just fine now.