Probably cuz the rest of the world is 20 yrs behind Japan
I travelled to Japan in 1994, buying the first issue of a magazine at the airport. This magazine had an article all about the European roadmap for widescreen, digital and hdtv and I remember being amazed at how long we'd have to wait to see any of this drool-inducing technology.
Imagine my surprise then, that I found myself living in a country that already had HDTV stations broadcasting content in a country whose citizens are proud of their traditions, old and new. Early adoption of new homegrown technology is as much a part of the Japanese psyche as going to work for the same company for your whole career.
Unfortunately, 15 years later, things have changed for Japan, but tiny little countries like ours that keep our public ignorant in their arrogant beliefs of global supremacy, still continue to import old technology and feed it to the masses as 'innovative'.