Who Wants a Haircut for $9.99? - Freakonomics

The other day I was walking past this barber shop on Broadway in the upper 90's. This sign caught my eye.It made me wonder what kind of customer is willing to get a crewcut by an "apprentice barber." Would you? Also, was there really an "apprentice barber" on standby only to handle the $9.99 cuts? …