The problem is not that you would be buying a $160 knife for $240. The problem is that you can (eventually) buy a $240 knife for $160.
Basically you are buying direct from the factory thanks to the Busse business structure. If you consider what the markup would be for the same knives if they went retail then you would be paying just about same as the secondary prices. Maybe a little less...
If you knew what WalMart paid for the the stuff they sold you'd probably be sick. As it is you know what most of the guys in the exchange probably paid for the knives. IMHO the knives are worth those exchange prices for the most part and that's why the markup exists. I'm actually happy that Busse Kin knives can maintain such a high value and it also means they will be doing business until the warranty runs out.