The $323 million Superyacht "A" moored in my harbor, Wellington. I took this picture from a circling speedboat as no visitors are allowed on board.

There's a famous quote by the late billionaire Felix Dennis: "If it floats or flies - rent it!"

He was wise to the enormous costs of owning jets - or superyachts - which can cost as much as 10% of the purchase price annually.

This means these pricey yachts are generally owned by Ultra High Net Worth Individuals, defined by most banks as having investable assets of at least $30 million.

Even so, very few lottery winners could afford to buy and keep these money-suckers, and you’ll see how this infographic outlines exactly why:

INFOGRAPHIC: Towergate Insurance