The cut has become a search in its own right. Dry aged, tomahawk, wagyu, chateaubriand: each has little competition and diners who will drive specifically for it.
Occasions carry the big bills. Work dinners, Christmas parties, birthdays for ten and up: those searches run weeks ahead, are barely served, and bring the tables that make a month.
The Christmas party is the special case with a fixed calendar. It's searched from September; a page written in November has missed that year entirely.
Groups look for set menus by name, and almost nobody publishes them. A per-head price for eight or more answers the question a company organiser is actually asking.