I saw the documentary and it was thrilling for me to see that kind of dedication to good music reproduction, how far some audiophiles have taken the art, and how unique, advanced and refined their systems were. What I wasn't taken by, was the approach of the filmaker, whos biases and subtext you could clearly see through his editing. Rather than simply present the subjects and the subject for what it is, he seemed to want to make a joke out of his subjects and subject matter. He presented dedicated audiophiles as "Freaks", and the message I saw him giving was "Look at how some freaks among us live! Isn't it CRAZY how much these boys spend on their little toys!". I found that condescending, especially when he's doing things like focusing the camera on the wives while the husband's are talking about how much they invested in their passion.
A good documentarian should be neutral, but this guy's biases saturated every aspect of that film, even down to calling it "extreme audio" (rather than the more common "high end audio"). What gets me is that you don't see people blinking an eye lid over the cost of high priced jewelry (where a single necklace or ring could cost what these entire systems cost), or fine automobiles (which again, could cost more). Those are somehow more "justifiable purchases" apparently, but someone who derives pleasure from listening to music in their home (rather than say, wearing a fancy necklace or gown to the opera), are put on a "freak pedestal", and made to feel guilty over the amount of money they've invested in their pleasures. That's just wrong!