I understand how the "value argument" influences the initial price of a good, but once it is out in the market demand should be taken into account. If a product

I understand how the "value argument" influences the initial price of a good, but once it is out in the market demand should be taken into account. If a product's supply is (practically) infinite and its demand is low, then the price should be low. Anything else smacks of poor business decision making or price fixing.