I don't see what first-sale doctrine has to do with this: Amazon is a private (publicly-held) company and is free to disallow certain products from being sold on its site.
First-sale doctrine means you're free to take your used Nintendo cartridges and set up a table on the sidewalk (subject to local laws about street sellers of course) and sell them to passers-by. Amazon doesn't have to provide you a venue for selling them.
Personally, I don't understand why anyone would want to sell older Nintendo gear on Amazon anyway. This is exactly what eBay is for. eBay's fees are probably a little lower too.
I am confident that the reason I gave is an accurate answer to the question I gave it in response to, for at least a very large share of sellers. Note that you can do something for a given reason regardless of whether that reason is true.
However, the fact that it's possible to run a business doing nothing but selling things on Amazon that you buy on eBay when an order comes in strongly suggests that the customers really are on Amazon and not on eBay.
Interesting. I've long suspected the dropship arbitrageurs had existed on Amazon for a while, but I thought they had long since become unprofitable, or at least this Amazon to eBay channel had. Could you go into more detail about this? I'm sorta curious about how big the market is.
It’s fairly common. I sell a lot on eBay and get maybe an order a week with a message of “do not include invoice, item is a gift” which is dumb since we all know they’r drop shipping. I love it, never have a problem with those buyers. But I do include thank you cards in them with my eBay stores.
First-sale doctrine means you're free to take your used Nintendo cartridges and set up a table on the sidewalk (subject to local laws about street sellers of course) and sell them to passers-by. Amazon doesn't have to provide you a venue for selling them.
Personally, I don't understand why anyone would want to sell older Nintendo gear on Amazon anyway. This is exactly what eBay is for. eBay's fees are probably a little lower too.