One careful owner: PokerStars founder Mark Scheinberg and his yacht Synthesis, which is on the market for $152.5 million. (Image: Amels/Getty)The vessel, Synthesis, is described by Autoevolution as “one of the most spectacular and painfully expensive mega-yachts to hit the market” and will set you back $152.5 million, with annual running costs hovering around $10 million. Scheinberg, 52, took delivery of the 242-foot Synthesis from famed Dutch super-yacht builder Amels in 2021. Rise of a Poker GiantThe Canadian entrepreneur started PokerStars with his father, Isai Scheinberg, in 2001, building it into the largest online poker platform in the world. Fertitta took delivery of the monstrous 384-foot Lürssen giga-yacht Boardwalk, trading in his previous 252-foot model of the same name.