> If you're a salesperson in a shop, and I ask "how much for that vase?", and you say "$100", and I say "I'll buy that vase for $100." then that looks like a contract. It's the acceptance that creates the contract; not payment.
Is there a single case where any shopkeeper has been held to specific performance?
I'm pretty sure if someone says "how much is the vase?" and you respond "$100," they say "I'll take it" and you say, "well, that's what it's worth but I'm not actually ready to part with it..." there's no binding contract to sell. But I'm not a lawyer, and I'm looking forward to a resolution here.
> N.B. Cancelation of a mistake fare has nothing to do with a post-sale price increase; because a contract that involves a mistake is rescinded, meaning that it is no longer recognized as binding - the airlines are not asking people to pay more in the context of an existing contract. The doctrine of mistake doesn't apply to the case where you intended to sell for a particular price then realized it was a bad deal for you.
This is actually incorrect. The DOT makes it clear that 399.88(a) requires airlines to honor mistake fares.
... if a consumer purchases a fare and that consumer receives confirmation (such as a confirmation email and/or the purchase appears on their credit card statement or online account summary) of their purchase, then the seller of air transportation cannot increase the price of that air transportation to that consumer, even when the fare is a “mistake.” [1]
A contract of carriage provision that reserves the right to cancel such ticketed purchases or reserves the right to raise the fare cannot legalize the practice described above. The Enforcement Office would consider any contract of carriage provision that attempts to relieve a carrier of the prohibition against post-purchase price increase to be an unfair and deceptive practice in violation of 49 U.S.C. § 41712.
However, they stopped holding airlines to that after a few folks took advantage.
[1] https://www.transportation.gov/sites/dot.gov/files/docs/EAPP...