I think there's a big difference between the following two scenarios:

1) I find 3 of a very rare chip, for half of chip rack. I put one in my collection, and sell the other 2 for chip rack value. A week later someone has these chips for sale for a tenth of chip rack.

2) I find 200 of a previously rare chip with high chip rack value, which I am able to buy for a fraction of chip rack. I sell 10 at full chip rack. A week later I'm selling them for half of chip rack. A month later I'm selling them for a quarter of chip rack.

In scenario 1, I got ripped off. The people I sold to got ripped off. But not by me. We all acted in good faith. Nobody owes anybody anything, except maybe my source if he was playing scenario 2. But if a big stash was found after I bought mine, that's the way the chips fall.

In scenario 2, I have done a disservice to my customers. I screwed those first 10 buyers. And it's not a matter of the quantity. If I control all 200, I set the price. If I set it high, and keep it high, that's my right. If I eat 150 because only 50 will sell at my high price, that's my problem. It's my responsibility to set a fair price based on quantity known and stick by it. John B made it clear a long time ago he never sells a chip for less than the first one. Maybe more but never less. That protects his customers and his reputation. But if an independent source finds identical chips and sells them for less, that's just the nature of the "business" we're in.

"If you can't run with the big dogs, stay on the porch."