Respectfully disagree. Which oil-rich Sheikh did you see who only has one supercar in their garage and not all of those you listed? These people aren't stock brokers or tech bros who need to work and save money for for years in order to be able to finally afford one dream car, but they own a multi generational empire that makes them enough money to afford all those cars.
>If none of them move on the deal then you're holding an absolutely immense albatross.
Comparing real estate to exotic cars is apples to buffalos. Most exotics are already sold before they leave the factory floor.