Here's another way to think about it. I find this note and remember my next door neighbor collects fancy serial numbers so I walk next door and Jim gives me $110 for it. It was definitely worth it to me.
But if I had to scan it, make a listing, wait a week, package it, drive to the post office, stand in that awful line to ship it would that be worth a $10 profit? Not to mention the fact that I had to pay for the listing, the materials to package it, the gas to drive to the PO, pay to insure and ship it. I lost money on it.
And of course a hundred has a greatly reduced audience for a listing because only very few people would even be interested in buying a hundred.
The moral of the story? Save it for your own personal collection or sell it to Jim next door.
