Phd, it is not surprising to me to see the fanaticism/compulsiveness of the audiophiles on Agon, or on the Asylum. Having observed a bit myself, it appears that all people display compulsive behaviors. It just varies from person to person what that compulsivity involves. By the time one takes into account dietary, sexual, monetary, internet related (read Agon discussion forums?) etc. aspects of behavior, it becomes fairly easy to see how people operate at times "out of control." It seems that only when it becomes harmful in the extreme do we suddenly take notice, like when a fellow Agoner admits he's overspent or threads lament of conflict at home beause of WAF...
Some compulsive behaviors seem benign, such as the grandma who knits obsessively, or the retiree who plays golf every single day and no one takes notice. Yet, there is as strong a driver behind their actions as the out of control spending of some on audio equipment. Totally different motivations likely, and quite different outcomes. But, supporting my point that people tend to "overdo" it in certain areas of their lives. Someone may say, "I don't do anything." Further confirming evidence of my observation...