Of course what you say is true, value or worth is subjective - something that you think is worth only the cost of production may be worth a lot more to someone

Of course what you say is true, value or worth is subjective - something that you think is worth only the cost of production may be worth a lot more to someone else. Everybody has their own value metric, but funnily if you want to buy or sell at a particularly instance in time you have to pay the market price.