I wonder if there is an entry in the DSM-IV for people who spend $150 on a duplex outlet, in the hopes that it will make their sound system better. People who believe that spending hundreds of dollars on gold-plated everything will make their system sound better than using el-cheapo cables must be suffering from some kind of mental dysfunction. Maybe they truly hear a difference, or their invisble audio friend tells them it's much better.
Perhaps this could be a study for someone going for a Masters/PhD in psychology; do blind-tests with audio systems connected with gold-plated components, versus stuff bought at Dollar Tree.
