http://shmuplations.com/akiranagai/
This interview with former Sega director Akira Nagai was originally featured in the excellent 2001 book “Sega Arcade History.” It examines the very early history of Sega and tracks the development of the arcade in Japan, from “gun corner” to “game corner” and finally to “game center.” He also comments on the well-known Invader Boom phenomenon, but points out several other key moments in the development of the video game industry that are arguably just as important (such as the fueihou laws and the transition to 50yen/100yen pricing).