So where is all the money going to?
The owners of the site in California.
They run the servers and back office so we can concentrate on running the site.
That way you get 14 years of service run by working airline pilots instead of cubicle bunnies.
Anyone who was a PPRuNer in the old days will remember the constant struggle Danny used to have in running the site and always struggling to buy newer faster servers as the membership grew.