Wel all know that gas stations advertise the price of gas as something like 3.73and 9/10ths on the signs outside the store. Do any of the more legally or financially learned types know how this is legal? Are there any laws about advertising one price for something, and charging something else at the register? If a gas station goes so far out of their way to advertise a price less than 3.74 in this example, like buying little fraction pieces for their sign, aren't they obligated to stick to that price when taking your money?
I know it's a small amount of money, but to me there's a principle at stake here. If they tell me one price before I agree to the purchase, then demand another price when I check out, that's just not right. How can consumers be charged in a denomination of money that doesn't even exist in the first place?