Kevin Nguyen gives his reasons for selling off the Nikon 16-85mm f/3.5-5.6G AF-S DX ED VR Nikkor Wide Angle Telephoto Zoom lens and keeping the Tamron AF 28-75mm f/2.8 SP XR ZL Di LD Aspherical (IF) lens:
I have both of those lens. End up selling the Nikon 16-85 VR and kept the Tamron 28-75 f2.8.
Then again, I do have the Nikon 17-55mm f2.8 as my primary I guess. I find living without the wide-open aperture of f2.8 was a pain. I would rather have that over VR. The ability Tamron could do macro at the same time was a huge bonus. The bokeh was great.
I’ve had D200 for 5+ years, the Tamron was my primary lens for 50% of the time. Love it.