NetJets pioneered fractional ownership of private jets, allowing customers to purchase shares of aircraft starting at 1/16 for around $750,000 plus ongoing fees. It coordinates 6000 flights daily using 600 planes and 2500 pilots. Customers receive top service like teams assigned to them and pilots briefed on current events. For the ultra-wealthy, custom-designed jets can cost over $60 million, with the Gulfstream G650 in high demand due to its speed and range despite a five-year waiting list.