There is a difference between a machine shop doing it precisely, and old boy with a drill press. The pad on the back of the (Which deal's with back spacing) wheel is what counts when trying to have a set redrilled if all is well then there should be no issues if a reputable source does it.
And honestly shop cost varies to much to be concerned with what one of my local shop's charge.
And honestly shop cost varies to much to be concerned with what one of my local shop's charge.