More than any other sport, baseball is always conscious of its history, which is a part of the modern game. Babe Ruth, Willie Mays, Ted Williams, Ernie Banks—these players are still stars in the baseball world.
Ballparks, too, have gained legendary status. But they are dwindling, both in number and mystique. Only Wrigley Field and Fenway Park still retain the mysticism of baseball's storied past.
Fenway Park's most recognizable feature is the Green Monster. For Wrigley Field, it is undoubtedly the scoreboard.
If any ballpark would be hurt by a JumboTron, it is Wrigley Field. Yes, they would keep the manual scoreboard too, but its significance would fade.
It would no longer be a living, breathing aspect of the game—only a musty museum piece.