what surfpirate is saying is that if a plugbuilder sells a plug at wholesale for 10 bucks and it costs him 4 or 5 bucks to build, he's only making 5 bucks. But when someone buys up some plugs and throws them on ebay and they go for 50 bucks, the ebay seller is making 3 or 5 times the $$ than the plugbuilder. Th eplugbuilder sees this and says "shoot, if my plugs are going for X amount of $$ than I am going to raise my prices....
I have no idea what NIb is talking about-
What it all comes down to is supply and demand.