Is it important to long demo or own HIGH END gear to have a fair accurate view about it?

About commenting on what one hasn't heard - I think it's ok to have an idea based the rest. It would be silly to comment about the sound, of course, but I can still read and watch reviews, specs and such to have a somewhat informed opinion.   

Re the never-ending overpricing debate -I pulled and compared data for a lot of speakers and among a few things, one is very obvious: you usually get what you pay for. With a "freakonomics" approach, I'd say that very few brands are overpriced, in the sense that some party in the distribution chain is "overpaid" disproportionately.

@mijostyn 

 Most differences that some audiophiles gush over are really quite minor or maybe even psychological.

Do you mean for high end gear? Or any? I hear (or imagine to hear :) ) profound differences with amplifiers.

@mijostyn sounds like 

small speakers > small problems. 

I recognize my mental barriers, just reading what you are dealing with was challenging for me :)