NeverHappy,
I'll agree and disagree with you. JohnK has not once implied that people who purchase cable-based system improvements are fools. He is perhaps the most straighforward, no-nonsense, nothing in-between-the-lines poster on this board. Also, there is a big difference between 'foolish' and 'gullible'.
I do agree, however, that many manufacturers are not charlatans but believe wholeheartedly that their products make a beneficial difference. They do no deserve to be lumped in with the charlatans, but the claims they make should be tested, nonetheless.
