You are right, it would have been a great time to be in Japan during those years. The 80s-early 90s were boom time years in Japan. There was a sense of being a great nation and the Japanese were buying up stuff and 'conquering' the world with its products, money and culture. Since the bust, Japan has been in low level doldrums with deflation and a rapidly aging society. It continues til today with Abe desperately trying to 'reflate' the Japanese economy to get it to grow again. Aside from Disk Union, my recent conversations with some store owners seem to indicate that things have become tougher since the financial crisis of 2008. But there still appears to be many record stores around so they must be at least surviving. We need to support them!