That would not tell you anything about how much someone values a product. Everyone will happily pay 0 for something they value at 10. It's a fantastic deal for

That would not tell you anything about how much someone values a product. Everyone will happily pay 0 for something they value at 10. It's a fantastic deal for them. Too discover the true value you have to raise the price until they refuse to pay it. Which is what a market is intended to do.