That's a slightly different game, because the SAME airline sells hundreds (usually thousands) of seats per day, and there's a lot of signaling involved. A rout

That's a slightly different game, because the SAME airline sells hundreds (usually thousands) of seats per day, and there's a lot of signaling involved. A route I (used to) fly frequently has two competing airlines, one of which raises the price towards the flight date even if they have free seats (they bank on you willing to pay a premium for a next-day unplanned flight), the other lowers the price towards the flight date if they still have free seats (they don't want to fly empty). The former does much better financially than the latter, although I cannot tell if that's the only reason. But a house owner sells/rents out once in 5-10 years, and never to a repeat audience; So money is all that matters, signaling doesn't.