Commenter "CCRN": Nucky's character just wasn't compelling enough compared to the other giants in the room.
Commenter Jehoshaphat-ass bass: Yeah, but that was the point. Luciano/Capone stories have been done a million times. It became a straight gangster story by the end, but it was really about the sea change from local political machines controlling everything to the awesome profits of bootlegging upsetting the whole equation and necessitating the strong arm of the federal government to develop a terrifying national police force. The central story was not a Sopranos-esque narrative of an uber-powerful Alpha Male raging against the cosmos, it was a Wire-esque narrative of sweeping changes in political and economic power throwing everything into chaos.. Granted, it didn't always work, but I'm glad they didn't go the Sopranos well for the millionth time.