BEING THE FIRST PERSON TO SEE SOMETHING is an experience that can surpass all others, create exhilaration that borders on euphoria and, maybe most important, win every dinner-party conversation for a decade. Craig Barnett, the sales-and-marketing manager for Triton, says the desire to have that kind of experience is a key reason why so many yacht owners want personal submarines. ¶ “Once you have your Ferrari and your yacht and your private jet, and you’ve traveled the world, it’s all about augmenting your reality,” he says. “How can you enhance your experience? With a yacht, you’re scratching the surface of the sea. With a sub, you’re discovering a whole new level.” ¶ In fact, according to insiders at Triton as well as U-Boat Worx, yachtsmen are embracing more than just…