They discover some "secret tweaks" too. El snippo:
"The hotshoe protection clip now comes with the camera – it's the little things – and external flash syncs at 1/250th sec. The inbuilt flash has a -3 to +1EV range, which is a nice touch. For the clatter-conscious, there’s a quiet shutter operation mode, which takes the edge off the taking noise. There
is still mirror clack, but the shutter isn't re-cocked until the shutter release is pressed once more.
One thing that gives the D300s the air of a more professional camera is the simplicity of the options for shooting. Program is the main auto mode, whereas Canon, at same price, offers Sport, Landscapes and other presets from the top dial. Essentially, this Nikon doesn't provide as many get-out-of-jail options for the casual user, as the D300s makes you work with P-A-S-M. Sure, you can customise settings to your heart’s content, but the options under your fingertips are stripped down, but very intuitive."
Link