@furcifer I am not sure that Bach Snob is really a valid generalization. Most of the trumpeters that I know and have known, play what they play and certainly NEVER picked their horn for snobbish reasons. There is a reason that Bach is popular - it simply sounds good. Great core and blend. Easy to play (well most of the Bb are) and their reputation is built on that sound. There was a time when almost nothing else was found in the major symphony orchestras. Players that trained the current generation of top teachers - many of which have switched to Yamaha. Fast forward 30 years and we now see that Yamaha in fact has taken the lead - in student, intermediate and pro trumpets. Schilke has jumped on the same bandwagon - with the HD model. The B&S Challenger series also shares a similar core sound.
My point was that a vintage trumpet is not necessarily a good choice for someone in high school and that a generally accepted "standard" type instrument is a better base instrument. Certainly Bach has withstood the test of time (including hard times) - can we say that about the defunct Martin corporation? What happened to Holton, Buescher, Conn and Olds? Where are Selmer Trumpets today? They did not die because of snobbery.
I am a professional in Europe where Bach is generally not the instrument of choice. My main piston axe is a Monette Raja C trumpet, my second most used piston axe is a Bach C trumpet that I bought in 1975. I play far more rotary and valveless instruments however. Still, in the best interest of a student, we do need to consider things, even if we ourselves have the freedom to do other things.