People to often listen with open eyes, how somethings sounds is not only reassons why people invest in hifi.
Price itself, design and the status a product have also have muct to tell for many...
When it cames to hifi to many wish to be fooled, we have all done investments who are stupidity. Myself I remember the green pen wich should be used on CD's (back in 90's), I was dumb enough and miss knowledge to understand that I got fooled. Not only dumb investment I have done when it came to hifi, back in time I buy way to expencive cables myself, and other mistakes wich have wrong focus.
But experians and knowledge have help me don't do such stupidity anymore, I don't tell that a OK DAC's don't matters, of corse a ok DAC is something all should use. But difference between them is so small that it's no reassons to empty account totally when buying one, the most expencive ones is not worth it and it is wrong focus... Better to use money on things wich really bring improvement in sound, like better amps and speakers etc., or buying music in stad of use to much on things wich give to little...