> Since only brands in Amazon’s Brand Registry can apply for SBA, the pitch is that SBA will guarantee that the brands themselves won’t be priced out of ownership of Amazon’s buy box by other gray market sellers that focus on undermining retail prices. The buy box all but ensures the product listing on Amazon that will get sold over competitors, and sellers “win” the buy box by offering the lowest price.
> To ward off concerns over margins, Amazon is offering SBA sellers a minimum gross proceed — which guarantees set profit for sellers based on a set selling price, even if Amazon lowers the price — for each product. The catch: Amazon wrote in its FAQ about SBA that MGP would be revisited “typically once every six months,” and that brands would have seven days to accept the new MGP, or reject it and deactivate a product from SBA.
So basically, Amazon always promotes the cheapest products, and they'll automatically lower your product's price to make it cheaper than the knockoffs. You get a guaranteed profit no matter the price, but that can also lower every six months.
This strikes me as a bad deal for sellers.