I just wanted to give a quick shout out to the D750. This shot was taken in super poor lighting conditions, and given my subject, I had to have my shutter speed up in order to freeze his movement. As most of you know, given these conditions, one must up the ISO to compensate. For this photo, my ISO was at 3200, and f3.5 at 1/200s.
Ten years or so ago I bought the D100, which was at that time, a darn good professional camera, but usually an ISO higher than 1000 rendered grainy images. Such was the technology of the day. I finally upgraded last year to the newly released D750 for many reasons, one being the capability to capture photos with little to no grain at high ISO settings (I can even get great photos at ISO 10000!).