[AnthonyMouse]

The cause of this is that it should be an anti-trust violation for any wholesaler or manufacturer to dictate retail prices to the retailer. They agree on the wholesale price because that's what they're negotiating with one another, then the retailer chooses the retail price in their store.

Now if Amazon wants the MFN clause, no problem -- but it's the wholesale price they can't sell to someone else below, not the retail price. If Amazon wants the lowest retail price, that's up to them.