Speech therapy or no speech therapy...that is the question

Yesterday Nathan had another speech therapy session.  She showed up this time.  It went okay.  Basically, she had him color a bunch of pictures of things that start with the letter B.  The object of the session was to repeat the names of the objects to get him used to hearing all of the B words.  We are supposed to do them at home for the next couple of weeks until his next session.  At that time, she is bringing another therapist to reevaluate him and set new goals.  It has been 6 months already.  I had hoped for a lot more progress by now.  I am just hoping that he will start talking up a storm any day now and that he just was not ready to do so before.  I know boys tend to talk later than girls and some do not talk until closer to age 3.  Maybe I would not worry so much if his pediatrician was not as concerned about it as she is.  Per her suggestion we are getting him a hearing test, scheduled for March.  She suggested switching over to the hospital's speech therapy program, but I looked into the cost and it is almost 3x what we are currently paying through the state.  Since he just started daycare we are hoping that will help with his speech, too.