The lure industry is comical at times.
An old running joke (from my childhood) was that of the effectiveness of "The Purple Demon".
My good friend bought one..........ordered it out of a magazine. It was guaranteed to catch fish.
We were in the keys once........causing some sort of trouble along one of the bridges.
It was night time under a bright moon.....and we could see dozens of tarpon along the bridge pilings. We were not prepared for any real fishing, but we DID have some rods, reels, and tackle.
My buddy went and got the purple demon out and started pulling it past the pods of tarpon. One by one, they looked at the thing then swam off.
He sacred them all off.
That was about twenty years ago, but to this day "The Purple Demon" is a well known lure between us friends. It is an archetypal representation of the frustration of fishing.
"You do any good today????"
"No....nothing.........they were swimming all around but no bites"
"You try the Purple Demon???"