Although one of New York’s most expensive apartment listings has languished for five years and counting, owner Daniel Neiditch’s got a new strategy he thinks will clinch the sale: space travel. He’s still offering three luxury cars, a $1 million yacht (plus five years of docking fees) but now two seats on a Virgin Galactic space flight have been added to the mix, according to the New York Post — and all that comes in addition to more giveaways, including a year’s worth of free dinners at Daniel Boulud’s flagship restaurant, Brooklyn Nets season tickets, a live-in butler and private chef, and a free summer in the Hamptons.