Re: @ tannin - The "value" of advertising
There is an assumption here that advertising only exists because it always pays. This is a very questionable assumption.
One of the earliest proponents of advertising, John Wanamaker, is quoted as saying "Half of the money I spend on advertising is wasted; the trouble is that I don't know which half." Many companies feel they must have an advertising budget, because if they don't, how will anyone know about them, or about "product x". it is a bit like taking out a high risk investment and hoping to win. But very few sit down and try to work out what sort of return, if any, they get on the investment.....
And of course it is in the interests of the advertising industry to promote this behaviour, otherwise they would all be out of business. They just tell their customers to "trust me and keep paying into the investment"
Think of advertising as a modern hard line religion, in which articles of faith are never to be challenged just in case the truth inadvertently comes out ......