IQ Quiz

Okay here goes:

Mr Loke said that having ur haircut by the school's barber at school is cheaper as it cost only $5 only.
My father fren who sells soy bean milk at a hawker centre said that going to a barber's shop is cheaper, only $7.

So can anybody tell me who is more clever?

P.S For those who are viewing my blog, juz submit ur answer through the Cbox i paste in nx to this question>>