How come NJPW doesn’t hold IWGP World title matches at Korakuen Hall anymore?

The last time they had one was all the way back in 2012 right after the Rainmaker shock when Okada won the belt for the 1st time and was immediately challenged by Stardust Genius Naito if I'm not mistaken.

What gives? A hot Korakuen crowd would add so much to a IWGP title match. Is it because NJPW feels it's too small a venue for title defenses?

by Gavvmark