Do the grommets and the name plate/tag which says Kooba (not sure what they are called) on bags change color with time? I tried to search this forum but couldnt find any discussion on this. I bought a Kooba jessie on eBay, but there are blotches on the Kooba plate on the side of the bag. Is that normal? Or does that mean its an older bag? I've seen it on some pics of Kooba bags on eBay. Also how do you keep them looking like new? Any advice is appreciated! And btw, I am now upto 3 Koobas (Charlie, Jessie and a Frankie off of the kooba website which is yet to arrive!) from ZERO a month ago!!!