Shep, I did not say you are stupid, and I'm not upset. Please don't take it personally, it wasn't meant that way. You posted what you believe, and I respect that. It just irks me that these marketing guys are so successful selling snake oil to unsuspecting people.
I know plenty of very intelligent people who have bought things like this and even been satisfied with their purchases, your uncle is obviously one of them. The only thing hard for me to swallow is measuring the actual improvements. Most people aren't meticulous enough to really see if there is an improvement, they just feel better about it. And they're happy to tell their friends. I can't count the number of people I know who've bought Slick 50 and claimed all kinds of BS about it. They still love the product, but it's snake oil none-the-less.