There’s a firm out there selling personal luxury submarines. Unless this is a monstrous hoax, these guys are actually offering subs (though not built on spec — I don’t think they’ve got inventory) from small 2, 4, or 6 passenger boats to 20-, 36-, and 65-meter undersea yachts. The 65-meter Phoenix was designed for a client who didn’t buy; it awaits a buyer for a cool $78 million. For that, though, you get 5 state rooms and a boat capable of remaining submerged (down to 1,000 feet) for up to 3 weeks at a time. No word yet on the torpedo option.