depends on the asking price and your goals. If you want a collector bike, the Bridgestone has the edge, and is probably a very good bike, although like other manufacturers, they covered a wide price range (Panasonic too) and so you can get burned if you go in thinking that all Bridgestones are collectors' items. If you want a good rider, either choice will be very good. The fundamental advantage is that Japanese bikes from the '80s' are very well made and not so desireable, so you should be able to get a good one cheap. And I'm not so sure that they won't appreciate in value someday as well, so you probably shouldn't beat it to death.