I know, I am digging a hole here, but what would be wrong with a general standard at least to start with when it comes to audio, no matter the component? I wince to bring up 'Consumer Reports' Way back then, because they did not seem to have a clue early in the game of audio. They were even more carefree than Stereo Review in some of their opinions as to what made a good deal. In fact, just about everybody lied about the products that they sold.
If there were a starting line so to speak for expectations of any piece of equipment, beyond the promise that it won't catch fire, then maybe products could fall into categories/expectation for the dollar.
Wow, this hole will get deeper the more I think about this. Goodbye.