What do you think about carbon fiber guitars and HPL guitars?

These are the concept of business hype, circle a sum of money, after some years on the disappearance, said a good point called carbon fiber, hpl, said a bad point in fact is plastic, is tantamount to a senior children's toys, a good musical instrument, is inseparable from the wood, first of all, regardless of the guitar, you can refer to the violin, are with high-quality wood to create a good piano.