One would think for a moment, that this is a totally absurd article, to attempt to pitch a Nikkor super zoom with a pro lineup glass. But to my surprise, it's in fact, one of the hottest topic on the Internet too!
Let's face it, the Nikkor 18-200mm is not exactly that affordably priced, with its net value pegged at the price of the Nikon D5000 body. And here we have the Nikkor 17-55mm F/2.8 glass, which is priced at twice that premium. Naturally, one would ask the same simple question of - What exactly are we getting for that extra grand?
This review also began partly because of my desire to evaluate the Nikkor 17-55mm F/2.8 lens for my Nikon D90, while really wanting to know exactly how big the difference a pro lens lineup would really make against my Nikkor 18-200mm lens.
Details wise, I reference you to a decent comparison of both lenses on a Japanese web site [here]. You be the judge. Personally, I see only marginal difference between them! Very interesting findings indeed!