Imagine you are a mohel and, thank God, business is booming.  It’s a good living and you even have time to sit and learn in between the jobs that seem to crop up at least once a week.  Also you do a bit of doctoring and tutoring a few children in heder.  You think, “perhaps I should have a siddur to replace my father’s worn-out printed volume that he got from his father and then from his father…oh so many years ago.