Are carbon fiber speaker cabinets inherently better than wood or metal ones

patrickdowns -$2700 a ton for billet, baltic birch ply is about $160 a sheet. If you do the math birch ply is more costly. 

All things resonate carbon fiber does so and it sounds plastic-like. Wood resonates and if done right can be low in level and even in frequency this sound good and doesn't detract. Alunimun is a cheap material marketed as a luxury item in audio because audiophiles don't remember that it's used in beer cans.