Jeff Bezos' superyacht Koru was the talk of the Palm Beach boat show after completing her first year at sea.Robino Salvatore/Getty ImagesJeff Bezos' yacht, which reportedly cost $500 million to build, completed its first year at sea.The superyacht, Koru, was a frequent topic of conversation at the Palm Beach boat show.Here's what industry insiders think about the vessel.It's been just about a year since Koru, Jeff Bezos' $500 million megayacht, set sail from the Oceanco shipyard in the Netherlands, capturing the attention of yachting insiders and land dwellers alike.Even after her first season at sea, the 127-meter ship is still one of the most talked about vessels among those in the know — and not just for the busty figurehead on its prow, which many have wrongly speculated is based on Bezos's fiancée.