But the only meaningful definition of an "unconscionable price" is "a price people are unwilling to pay". If the true market price is $3.50 per gallon, and the gas station down the street charges an unconscionable $15.00 per gallon, nobody's going to buy that station's product. So what's the point in regulating against it? And who is harmed if somebody charges that much? If somebody charges $200.00 per gallon, is that worse? How about a "closed" sign instead, or a "no gas" sign...better, or worse for the consumer?
Read my example with power generators in post #35.
When there is no station down the street.
Some guy is lucky enough to have the only station that survived the Hurricain so he raises his price to $6.99 / gallon and $10 per bag of ice, because he knows people have no other option, even though he can get all he wants at $2.39 / gallon and $1.00 per bag of ice.
That is profiting at the expense of those that have no choice and should be illegal.