Glen Rovers v Blackrock: What caused the pull of city hurling to diminish?

The Glen Rovers team who lost to Blackrock in the 1973 Cork County Senior Hurling Final at the Athletic Grounds
Baseball in New York city was never stronger than it was in the 1950’s. Between them, the Yankees, the Dodgers and the Giants won eight world series and there were five ‘Subway Series’ where the Yankees played one of the other two.
As ever, New York has nothing on Cork. The 1970’s was a golden era for hurling on Leeside as the Seán Óg Murphy cup never ventured beyond the city limits, and there were eight all-city deciders contested by a combination of Blackrock, St Finbarr’s and Glen Rovers.