From a different point of view. it is not the equipment (better stuff/better opinion)but the person listening.
For example a person who never bothered to learn anything about stereo, nor much interest in music, gets invited along to the Munich Audio Show. They tag along and see and hear all sorts of interesting stuff, even private showings. As the guest of a very important rich investor/audiophile).
Do they now qualify for the claim of having heard and experience to best, as having a ’better more valid opinion’? (("Well that one was more like work of art."))Only in the context of another similar person who never did go to such an event nor had such experiences.Would that Show goer have an actual more valuable (to another audiophile) opinion than a person who never saw or heard anything other than their own system they worked on for twenty years??? Not likely. I would certainly call the isolated one system person more ’knowledgeable’ than the indifferent Munich Show goer.
And on the third hand, Someone rich who likes music, but is a bumbling know nothing when it comes to anything requiring two bits stuck together. Has all his equipment picked FOR HIM by a dealer. he has seem and heard the very best, but could not really tell you what is what in any meaningful way. Is HE worthy of saying he has a valid opinion greater than some poor relation who carefully assembled a modest system working up to a pretty good setup, mainly through buying used..Who is the person you would respect and ask a question of???