Read anything by Dan Ariely – especially "Predictably Irrational" – and it will become clear to you pretty quickly. He also has several TED talks you can watch online...
Why are people always getting into pissing matches because they think what they have is better
Luckily I don't see it as much on here compared to other audio websites. I just find it so annoying I stop looking at the thread. There are just to many variables in audio to debate what is better than what. I guess it's just an ego thing that I don't want to take part in.