I'm sure it is simple production #'s, they do pump out 50 amps vs. 5 amps to 90% of the other manufactures in their price range... Its the same with Klipsch, they are high production and have Many dealers so for a piece of gear that comes up every 2 months from somebody else will probably come up 2 times in one month for a mac. Or We are just Stupid and love to Lose money re-selling gear and never gain any more sound!!! Ha...