Well after just picking up a LNIB 17-55 2.8. I went through my pics and checked to see how often I used anything over ~55mm. Time to sell my 50 1.4D & 18-200 VR Nikkor to pay for my new acquisition. Gonna keep my 10-20 Sigma. How does one price these? They're both used but very lightly. Zero marks on either of the lenses and both have had filters on them since they were out of the box. Prices seem all over the place on the used market though.