@jpwarren58, I think you are right. Some of them are.
That fact that a system appears to sound better after an inconsequential change is explained fully by the way we process sensory input. That "improvement" is not durable so like a rat pressing a button to get a treat the behavior repeats continully.
The people who make audiophile garbage are obviously quite aware of this based on the marketing they conjure up in an attempt to provide a rational explanation for a sonic benefit. They are knowingly taking advantage of people who are either unaware of this sensory trait or unwilling to accept it's reality.
Looking at it from another angle, money changing hands is always good for the economy and it generates taxes, just like cigarette smoking and gasoline consumption.
Tommylion, do yourself a favor and save up your money for a good set of speakers. You'll get a lot more bang for yur money.