I bought my D600 as soon as they were available in stores. I didn't think to check it for dust until after 2000 shots. When I did check it for dust a quick wet cleaning took care of the few stubborn spots that wouldn't blow off. Since then I haven't had any more dust than any other camera. Remember that on the internet a couple of people can bring up the same thing over and over in many places to make it look like there's a big problem when there isn't.