I perfectly understand the postage issue as I have hundreds of duplicates that I am sure people would be interested in but the postage costs make it impossible. Sometimes I wonder how you do it when somebody buys a four dollar chip. I think I was surprised because I got the fractionals at a very cheap price and spent about 20 minutes looking for differences.
Now, another question. Would it not be easier to bundle two or three sets to cover postage costs and still be within a reasonable price range? I understand the scarcity/unique factor Jim mentions as I was (still am) a coin collector for over 30 years and sometimes you take what is available or wait another 20 years for it surface.
I am not trying to create a discussion group or belittle anybody's offers - I was genuinely surprised when I saw those chips.