At the very height of the post-Sandy Hook ammo-panic, I stumbled onto a couple of 500 round spam cans of .223 in a nearby Wal-Mart for like $125 each. When I asked about them, I was told that people were constantly trying to buy them, but that the cans were somehow shipped to the store without the barcode stickers, and they did not have the right SKU code to print the barcodes and could not sell them. I asked the lady if I could find the right SKU number, could she print the barcodes? She said that if they had the SKU, then she should be able to print the labels. So I went online, found the SKU, and the clerk put it into the computer and found it. She then went and printed the labels and I bought both cans.
Now that was some good thinking.