After four years without attracting a serious buyer, Microsoft billionaire Paul Allen has taken his 303-foot megayacht Tatoosh off the market. Allen originally listed the vessel with Fraser Yachts for $160 million, but has gotten no acceptable offers despite its being one of the most luxurious yachts ever built, the Daily Mail reports. The mogul, who also owns the 414-foot megayacht Octopus, has tried some publicity stunts to attract a buyer. He let Paris Hilton party on board the yacht shortly after listing it for sale and she dutifully tweeted that it was “heaven on the water.” And more recently it was the largest yacht to travel to Sochi for the Winter Olympics, where it dwarfed Vladimir Putin’s 187-foot Olympia.

Tatoosh, built in 2000, was bought by Allen in 2001 and refit in 2010. It can accommodate 20 guests and 30 crew members, and has a cinema, swimming pool, two helipads, a basketball court, recording studio, spa, massage room, gym, and a games room. Stuart Larsen of Fraser Yachts’ Fort Lauderdale office, told the Daily Mail that “the yacht has not been sold, and furthermore is not for sale.” A spokesman for Allen’s Seattle-based company Vulcan chimed in, saying, “We do not comment on speculation around Mr Allen’s personal property.” Speaking of speculation, there have been persistent rumors that former British Prime Minister Tony Blair had brokered a deal to purchase the yacht, but Blair's spokesman has dismissed it as “total nonsense.” Looks like Paul will just have to keep it.