It amazes me that alot of people who praise Duran Duran so much, remain oblivious to Japan.
There is an easy answer to that, Duran stuck to a commerical 3min pop song, many of Japan's classics last for around 5 minutes plus, it doesn't fix the radio format.
Also Duran embraced the whole marketing thing, there were many pictures and interviews with them in the likes of Smash Hits etc.
Although to be fair, I prefer Japan over Duran Duran (with the exception of Nick and Arcadia of course).