Worlds Largest Yacht ... 557 feet
At a cost of 1.5 billion, this toy has all the goodies...., Military grade missile defense system, armor plating, submarine, and the list goes on.
At an annual up-keep cost of 50 million and 650K to fill the tanks with fuel, I would say that the owner has a little a little pocket money to throw around.
2016 GM 2500HD 6.0L/4.10
2005 Jayco Eagle 278FBS
Reese HP Dual Cam
Putnam Class V