you are correct in normal times.
The only reason it happens today is because
market price of the car is way
higher than the residual (for leases prior 2020).
Because of the fast inflation in used car prices.
Same thing with real esstate homes. Everything is up market value 20-30% or more from 2020 and before. But if I recall some leasing companies stopped allowing 3rd party buyouts because too many people started selling their leases to carvana carfax etc. Mazda leases in the part were by Chase and they allowed anybody who
pays the buyout price to get the car. Dont know about Toyota Financial which now services the new leases from around 2020.
and yes, nobody pays you anything
most people drop the amount as a downpayment on the new car lease or finance. Essentially one still pays the full price of the new car
it just lowers the new monthly sometimes.
But lease to lease is endless cycle in which under normal markets the person leasing doesnt gain anything but pays a rent to drive the car.
Leasing used to be a way to drive more expensive car for smaller monthly vs financing. through a lease with high residual and manifacturer rebates, dealer discounts etc.
That is now thing of the past.