Do you think audiophiles are the most gullible hobbyists

Quite the opposite. Sure there are those who make buying decisions based upon smoke and mirrors but there are - at least it seems to me - more than the hobby's fair share of skeptics. Most are fair. Some are merciless, others are assassins. From what I read in this and other forums it is one of the best aspects of the hobby. Thank goodness for them. 

Schubert's comment made me think. 

Maybe not with equipment, but as I consider some of the music purchase choices I've made, I must confess there's some real turds in this music lover's "collection".

Sophmore albums that follow a dynamite premiere and got purchased unheard because I knew (gullible) it would be great.  Albums by aging rockers purchased out of a (gullible) sense of loyalty. Albums purchased based upon a glowing review by a reviewer whose taste I like. (Gullible.) Solo albums by bandmembers that make you wonder how they they were in the band in the first place. Gullible.

Worse, I can't resist rummaging through the bargain CD/LP bins in brick & mortar stores thinking (gullible) I will find a treasure. 

Gullible?

Guilty!