Can you name anything? One of the biggest complaints I've read about Amazon from the seller side is that they can be punished if they offer a better price somewhere other than Amazon.
The only items that seem to skirt this is repackaged items/junk from AliExpress, but they are or are pretending to be different companies.
The only items that seem to skirt this is repackaged items/junk from AliExpress, but they are or are pretending to be different companies.