Nikkor 70-200 Just a quick question, you are selling this lens on ebay for $110 why here you are offering this lens for $970? http://www.ebay.com/itm/Nikon-Zoom-Nikkor-70-200mm-F-2-8G-VR-AF-S-Lens-/231024977716?pt=Camera_Lenses&hash=item35ca296734. Just curious.