I saw a clip of Kathryn Aducci playing a baroque trumpet and wondered how much those "things" cost. I did a little google searching OMG ... 2k+ ??? no valves .. some holes.. no real braces . It's not like the formula for resonance and tube length is a top secret thing. I get that they aren't mass produced and the market is quite a bit less but $3,000 for brass tubing with some holes in it? Are they that good?