I really don't get the mystique of prime rib. In my long professional life I probably attended several hundred dinners with a prime rib buffet as the featured menu item. The fuss made about choosing the end cut, pink cut, extra rare cut, sliced thin, sliced thick seems somewhat unnecessary. And then there are the condiments: extra hot horse radish, seasoned horse radish, Merlot Au Jus etc. etc. All of this presided over by a carver who seems be there mainly to assess whether or not you are deserving of this culinary work of art.
To me it's just an under cooked roast, often excessively fatty..
Put the carving knives away friends, I'm only kidding....sorta.