value for money - linear or exponential ?

Value for Money ( short for V4M ) is basically how much values you get from the money you paid. It is often irrelevant how much is the price of an item or service. Whether or not a person pay for something is simply because of how he perceives the values he is getting.If a person perceive values more than its price, he would paid for it !If a person perceive values less than the price, he would...