Buy a D600 or a D700 ?

I'll add my 2cents to what seems to be some very extreme views here.

I came from using a D700 for two years and about 40K frames of sports/low light, then 50K frames on a D3s.  Now own a D4 ( 2k shots ), D600 ( 7K shots and going ).

It is true the D600 has a few "pro" features removed, but anyone who tells you that its cheap build, slow AF haven't pushed the D600.   IMHO the D600 to 6400 ISO downsampled is hard to tell different at normal viewing than D4.   4 years brings a lot of superior technology.

I have yet to miss focus on the D600 and wished that I was shooting the D4.  The D4 I bring out for serious sports shooting, almost all other times its D600.  Why you ask, super quiet shutter, amazing IQ, great balance of resolution / file size, fast  enough performance.

I have that oil thing, haven't cleaned the sensor, has yet to ruin a single picture....