I am asking for opinions about purchasing a used carbon fiber frame. I have found this bike at my LBS. The bike originally lists for about $2300. (The frame alone is about $1400). The components are new but the frame is used...and it shows. Every tube has chips in the clear coat (about 1/16 inches deep). These chips look like they could have been made by bb's...about that size. The chainstay is particularly chiped. Frankly, I can't imagine how so many chips could be acquired unless the bike was transported via a rear carrier and road rocks were allowed to do their work. So cosmetically, the bike is a thing with acne. The question, what deeper concerns should I have? The store, of course, is sure the frame is sound. They are asking $1400. I suppose I should add that it is a reputable european manufacturer, though there is no warranty on used frames. Any ideas or opinions will be greatfully accepted.