Also, if you get a good deal and get 100 printed for $100, and get your headshots taken for $300, you are essentially spending $5 every time you want to take time off work to audition for someone who may decide to pay you enough money over the course of a couple of months so that if you have a sublet, you won't have to charge your next set of headshots.
All of that is if you're lucky.
"Fundamentalism means never having to say 'I'm wrong.'"
-- unknown