I know there was a popular thread out their about the Saudi Prince who owned a 4.8 million dollar diamond crusted Benz. When in the US we have are share of Business Billionaires who like to show off their wealth check out the toy's that Paul Allen owns.
"" Costing US $200 million to build, it is 416 feet (126.8 meters) long and has a permanent crew of 60, which includes several former Navy Seals. Octopus also has two helipads, seven smaller boats within and a 10 man submarine which is capable of staying two weeks underwater with a full crew. His other yacht, the Tatoosh, was the second-largest in the United States when purchased in 2000. The 300-foot Tatoosh carries a 30-person crew, two helicopters, a swimming pool, a spa, a private movie theater, six other surface boats (including a separate 54-foot racing yacht and two Hobie catamarans) and (only one) submarine.
Paul Allen apparently also has a third yacht slightly smaller than Tatoosh, as well as two Boeing 757s."
PimpWiz: Paul Allen’s 200 Million dollar Yacht : "The Octopus"