Nice of him to buy a big boat like that for the crew to live on. Most folks who own large yachts seldom actually personally use them as compared to some redneck with a cheap jon boat.
Used yachts are some of the best deals in boating, if you have that sort of money.
That's his 300 million dollar yatch. He has a companion ship worth 100 million that's 80 meters long to tend to the main ship he rarely visits. Of course, there's a helicopter, pleasure crafts that can be launched...who knows, maybe a submarine.