my D600 shows two little dust spots, which isn't nearly enough to get me excited.
I propably will also buy a 6D though, as soon as it's tested and all of it's possible hiccups have been worked out, just to get access to the sweet L glass, mainly 50mm 1.2L and 70-200 2.8L.
Great news that the wait isn't much longer! Also hoping for 13+ stops of dynamic range! (too optimistic?) And good center spot af performance.