Their financial structure is pretty interesting. I think each tournament is run as it's own charitable organization, so the 1.5B PGA Tour books is far from all

Their financial structure is pretty interesting. I think each tournament is run as it's own charitable organization, so the 1.5B PGA Tour books is far from all the money in the system. Plus a ton of the money is direct sponsorships to players and there are rules how big and how many logos players can have. Even caddies make money wearing sponsored hats and shoes. Tour cards are limited to about 250 as well, with each field being about 150 (it varies), so the money is split by a much smaller pool of players than any team sport, where an NFL team alone might have 90 rostered guys.