Which bring up a (different but related) question, do companies really get value for the money they pay to sponsor the PGA or is it just a big ego thing and perq for the top execs?
And to tie Tiger into it, there are tournaments on foreign tours, especially in Asia, that will pay him to come and play. And what they pay him is in excess of what he would earn if he won the tournament.
Just having him in the field brings in the ticket sales and ad revenue from TV for these tournaments.