cool, a cf expert... just for my edification... i'm guessing that a pin cabinet would run well into 5 figures... that a reasonable guesstimate?
i fully admit i could be in la-la land on that guesstimate, but in either case, it would be WAY more than 75 dollars (or so) worth of plywood...
I've built master molds for aircraft composite parts, made parts, and repaired parts. To build a composite cabinet, you could build something out of cf that is very strong, and very much lighter than plywood. You would have to have inserts for screws, and some sort of honeycomb for strength.
That makes it very complicated, and much harder for changes later. To do it right you need a temperature and humidity controlled room. A large autoclave is needed, which makes mass production very hard unless you have a lot of autoclaves. The man hours needed to create each side would make it cost prohibitive. All aircraft manufacturers are jumping on the Carbon fibre bandwagon and have driven parts costs up. Once you have the cabinet made, and somebody damages the side, unless you want a crummy repair, you need someone who can do repairs with heat and vacuum bags. In short, the average person, will end up doing poor repairs.
In short..
Parts expensive
Manpower is huge
Repairs unpractical
It would be a very cool cabinet though.