Re: Yamaha 62 question
The matte finish has became very popular, as it gives the horn a more vintage appeal. This IS the latest finish option available and has not been available very long, so chances are this is a horn that the music store received recently also. It's strictly cosmetic and has very little if any effect on the sound.
You've made a great choice selecting the Yamaha 62. It's a great horn which should carry your son through college.