Furutech Acoustic panel room Diffuser?

Furutech Acoustic panel room Diffuser has anyone looked into this using this diffuser? I have to scratch my head and wonder about the price of the panels themselves. A box of six would cost upwards of over $3000 grand. If one looks at the amount of material thats used to build a panel that the most expensive material is the silk surround used in each panel. The panels are made of Air Foam Polystyrene{styro foam},plastic,wood and silk. I would have thought that any reviewer would have at least question the pricing per panel? At the price of 3k for 6 I rather purchase some attractive art and leave it at that.The markup is extraordinary for the amount of material used and as far as anyone defending the price of the panels by bringing up R&D.Please the info is on the net for all to review.