Old Mac is sure pumping people up. Which I think that is helped by the fact that 10 holes have been open to many for about a year or so with people coming back here, bloggers, and journalists writing about how great its shaping up to be.
Also, it seems that when various golf officials award big tournaments to courses, that gives the course instant credibility and generates a good amount of buzz (Erin Hills, TOC, Chambers Bay, etc...)