All true, Archie...
... my post had absolutely nothing to do with appearance. All I'm saying is that the clean chip will absolutely sell for more than the dirty version, and that the dirty one might have been harboring some diseases. Beauty is in the eye of the beholder, of course, and as unnatural as the cleaned chip may look to some, I'd bet that if both chips were made available for the same price, virtually everyone (who needed it) would buy the cleaned one.