As someone who spent a year working for one of the pioneers of infomercials, I can tell you that their biggest cost is the television air time. And for every successful informercial, there's twenty failures where a ton of money was lost on the tv air time. So in as much as many of these commercials are deceptive, I can also tell you that it is a very high risk investment where many people lose their as--es. And those money-back guarantees? Ha! Those attempting to get a refund are intentionally put through a maze of recordings designed to make then eventually give up. This is a fact.