Yet people continue to buy knife sets and fitness devices from home shopping TV shows, proving that it does work. You have to see it as a part of a broader per

Yet people continue to buy knife sets and fitness devices from home shopping TV shows, proving that it does work. You have to see it as a part of a broader persuasive effort. By itself, it doesn't work. But when it is paired with reviews, testimonials, ratings, high-quality pictures, etc., it adds to the impression that this is a legitimate product