Art,
I was fortunate enough to grow up in the Leeds area, north east England. As such I have played many Mac courses and my experience is that they usually had substantially more than the 21 bunkers that ANGC had at the start (I believe it was 21). Looking at many of his well known course, Melbourne, Cypress P, Moortown, Alwoodley they all seem to have quite a few. Maybe it was economic reasons or just a change in style, I don't know.
Often, however if the product is different to the expectations, it will standout. I was just wondering if this might atribute to a courses fame?