I often wonder the same thing. Having worked aboad megayachts, I can attest that they are not such great boats. They are all pretty much the same (maybe Armani's is a cool designed interior), and they really make me yawn when I see them these days. I also see tons of great commercial
vessels out there that would make very interesting megayachts.
I guess the thing that would get even the very wealthy running the above vessel would be the gallons per mile rating (yes, gallons per mile).
PS: Great bird of prey reference!! Looks just like one!