Nikon D7100 vs D200
Some time ago I got rid of my D200. But now I have another one in excellent shape. In the past I upgrade from it to D7100 which is better in terms of resolution, sharpness and features. But there are some differences like image plasticity and color vibrance which make D200 still a very good camera. If shooting low light then D7100 wins for sure because of wider dynamic range, but if lighing is fine and you need not to crop pictures then go with other cameras like D200 or D70s. They work very well and produces fine images.