I was in charge of running buses between our college and rival school for "the game" each year. We had a student run organization where we kept 60% of the profits. We shuttled 2,000 people on ~30 buses, all through one bus company. We literally had to do nothing except send emails... the bus company handled all the complicated logistics.<p>It was a great gig. Very profitable. I can only imagine doing this at scale will bring some nice $$$.