Here is how I see the typical development of a trumpet player in respects to instrument models. This is by no means set in stone, but describes the progression very often followed.
The beginner has an inexpensive trumpet, used, new, or rented. When the player improves they might get an intermediate instrument. By no means is this the norm.
However when they start to get quite serious about playing they look for a really good instrument and ask advice from their private teacher or band director. That person, feeling the need to be conservative, will probably recommend either Yamaha 6xxx series or better, or Bach Stradivarius. Good recommendations, as these are very good trumpets.
When the player is out of school and looking for that tiny bit of extra from their equipment, or hoping to overcome the particular deficiency that irks them, they will look to the alternate professional models - all of which we do not need to name, but you may care to browse my signature
It seems that the aim of some of the newer entrants to the market is to get their instruments into the minds of the band directors, so that the step to Yamaha or Bach as the second instrument is bypassed and their brand is recommended. Bach and Yamaha continue to introduce new models, possibly as a defense against this marketing challenge.
The ultimate (or should I say Utimate) winner is inevitably the player, who has more model and brand choices than ever before - at least whilst all the companies manage to stay afloat.