they wouldn't because they would not make more than they know they can sell.My first thought was for amazon to sell everthing that would go to waste for cost of delivery, but then this would drive prices of everything to rock bottom.
It's no different to Rolex, Omega, Breitling and other watch companies crushing thousands of unsold watches each year. If they sold them for less and less they would go down in value from thousands, to hundreds to next to nothing
why do they care about the RRP anyway? it's not them losing money surely