Do you think audiophiles are the most gullible hobbyists

Geoff, the plural of hobby is hobbies not hobbys.
Another example, which is much closer to home, the plural of phony is phonies.

Audiophiles are certainly NOT gullible. There is always hard science driving every product's marketing campaigns and every audio purchase. For example, everyone knows that spending hundreds of dollars to lift your speaker cables off the floor improves their sound quality, but ONLY if you support them on blocks made from rare, exotic and costly woods. Also, maple wood for shelving that has been air dried (not kiln dried) produces a better sound; and it's not a contradiction to say that shelves should not resonate AND that they have their own unique sound. And cables really ARE directional in terms of electrical flow. Who can argue with such logic?

Good catch, Andy.  The plural of goofball is goofballs.  Get it?  :-)

You would know but that still doesn't explain your command, or lack, of proper grammar.
A phony is a phony.
Get it?

I know you are but what am I? And it still doesn't explain why you’re a goofball.