Hi Bombay: Busted! I have actually met some of these people, and listened to their systems. However, I think the film is more than a display of systems.
I actually found this little film moving in certain ways. Nicely made; the editing, the music and images blended quite nicely. And the hobbyist nature came out well.
And this is important. After all, and despite everything, there is passion in this hobby; it's time a little bit of our own passion came out in the open -- not as "Oh you guys are crazy" -- but simply as "you guys are really into something, just like other people are into s/thing else". "And it's fascinating", because it is after all.
As s/one said in the film, "other people buy Mercs, I buy hi-end gear... For me they are crazy". Why not?
BTW, a few of the systems are not only expensive -- they are superlative (sonic=wise).
Cheers.