One reason to do what they did is because they wanted to do it, another reason (as is obvious by the associated orchestrated publicity) is to impress the hell out of people. I suppose I'm not the target audience, and some people are really impressed, but it seems like old-dude-with-a-lambo territory. Really cool, old man.
Better ways to impress, I think, if you have that much cash...
(yes I know this is about now old news)