Okay, here's an example:
My brother is a music hobbiest who writes and records music in a basement studio he built. It's actually a pretty decent little space. He was using crap mics and crap preamps for a long time, I just couldn't get him to see the light. His idea of value was picking up deals like "three mics for $69".
Finally, I convinced him to get a decent preamp and decent vocal mic. In his case,
a Focusrite Voicemaster Pro and EV RE-20. Neither of these is a budget buster, but the RE-20 in particular is a profesdsional mic that is used all over the world on major recordings and in broadcast.
Well, my brother noticed the difference immediately, and so did the singers he brings in to record his stuff. As in, they commented on the improvement the moment they sang one note. I had set up his mic and preamp settings for him, as well.
Now, those same singers are talking about the possibility of having my brother record their band, of doing some projects with him. This did not come up until he had upgraded his studio to professional level gear. Only then did the possibilities open up. And again, we are not talking about esoteric level gear, just solid professional quality gear.
It doesn't cost that much more to get into the pro level gear, it's really more of a mind-set than anything else. One has to get away from the blinky lights and featuritis that Behringer and others use to pimp their gear. The lower level pro gear may look plain, but they've put the money in the right places. People get too seduced by features.
Look at the Rane MS-1b preamp, Grace 101 preamp, mics like the EV RE-20, Shure Sm-57/58, SM-7B, and other professional mics. These are solid workhorses that sound great and are not that expensive.
It's more a mind-set than anything else, as there are professional tools available for low dollars.
The only person getting fooled by prosumer garbage gear is the person buying it. I do certainly believe that a golden eared, and even not so golden eared person can hear the difference between
a Behringer C-1 and U87. It will make a difference in a mix. To say otherwise is to say that nothing therefore makes a difference in the mix. And we know that to be false, as *everything* makes a difference in the mix.
Opportunites didn't open up for my brother until he went to some carefully chosen pro gear, and it didn't cost him that much either. So by sticking with lousy gear, one is really only limiting ones possibilities.