@dkalintsev As with the car example, I don't think the monetary cost of this can really catch up. Say you pick up a fridge by the side of the road that's extremely inefficient and uses an absurd 2kWh per day more than a nice fridge that a rich person would buy (this isn't really even plausible). Locally, this costs $70 of power per year. A "nice" fridge is $1k+ and you're never going to catch up to that for as long as a rich person keeps their nice fridge.