New tech billionaires buying Gulfstreams are ditching flight attendants for a utilitarian approach. They view private jets as transportation, not luxury, opting for fast food to avoid conspicuous consumption. This contrasts with Wall Street and Hollywood’s lavish private flights and charter jet requirements. A new wave of tech billionaires — that’s growing thanks to today’s SpaceX IPO — are buying Gulfstreams but eschewing the traditional luxuries that come with it — namely, hiring a flight