I've been fortunate to have been hosted at excellent golf clubs by excellent individuals, who are keen to share their insights on the course (and, when I'm lucky, engage in conversation on it). Last year, the main thing that led me to not join the wait for one of several clubs on the north side of Columbus is that I would not necessarily be able to bestow a similar level of pride when hosting, or in general. I'm a bad combination of 1) architecturally snobbish and 2) disinterested in reaching scratch. Playing more would ironically interest me less in such a situation.
The idea of joining a distance membership appeals, but I doubt most have interest in one without a home membership. Maybe the markets slow and the Columbus CC's of the world are in need. We'll see.
I don't think my response really answers the general industry question posed in the header, assuming this is still the trend. Based on the waitlists, this is no longer the trend.