Or preparation as play.
This post was inspired by long set-up times eating into time-crunched play time for busy adults.
As a young adult with minimal time commitment I had no problem spending hours preparing for a gaming session among friends. And there was little concern for an hour or two spent setting up a wargaming afternoon. But in adulthood these time commitments quickly eat-in to or completely consume any time that would otherwise be spent having fun, gaming with your friends.
Certain games are suited more to the preparation side of things than the improvisation side.