I don't fully agree Elden. I'd say there are people who will pay
almost any price for "weathered" equipment regardless of its accuracy
either with respect to the model, or with respect to the weathering.

But my experience with fully built highly accurate models is that a
realistic weathering job will bring in a higher price on Ebay than the
same car without any weathering. The exception is brass, where it does
seem that collectors prefer an immaculate (clean) model in most cases.

Tim O'Connor