Vince, you make valid points, however I modified a lot Prosound, guitar drums bass played since 1984 and that evolved into being audiophile myself.
I can tell you playing the instruments myself on cheap Prosound versus good quality there is a difference Imho, and the real musicians I played with, not me by no means, agreed and we tweaked away on their equipment together, the guys I knew were backing musicians mainly in studios, but a few played live few times nothing super famous but known bands.