To me it depends on what the product is. For example, if I pay for traffic and receive the traffic I paid for, wouldn't this then qualifies as product paid for and delivered? The next questions then could be what is the quality of the product the customers receiving? Is this traffic product paid for just simply over priced junk traffic you could get elsewhere for free? These are some of the major concerns that plague that industry. Might and just might be if they were to modify, or change the product to some real value added product that no one can deny, then that market could have a fighting chance. Until then, this area of marketing will always be under heavy scrutiny.