If it makes you feel any better, I guess you're performing a valuable service to society. You're keeping the market working the way it should by ensuring that s

If it makes you feel any better, I guess you're performing a valuable service to society. You're keeping the market working the way it should by ensuring that stations with slightly lower prices get less business than stations with higher prices, which helps keep the prices down for the rest of us. So in addition to those one or two dollars of savings, you should also get the warm glowy feeling of being a public benefactor. Congratulations!