It is not the cost of manufacturing that makes the cost of the boards, Cobra sells the boards to the brands at about 20% of their final cost. So even if they increase their rates by let's say 10% from one year to another (which is huge), it is only 2% of the final price already, so it is not because of them if we see the prices increasing so much.
The main responsibles of this situation are us the customers! If we would not buy the boards at those prices, they would not sell them, that's the law of the market! When Mr. Starboard produces an Isonic in Wood and a Full Carbon one more expensive; guess which one he sells better: the full carbon!
We are all fashion victims!