hey Cheapy! Greetings from Shibuya!
You are wrong mate!, you *can* find some good deals here in Japan for low-end/mid-range electronics stuff.
There you go, I believe the same soundbar model Wombat got in the US: http://kakaku.com/item/K0000095289/
pretty much the same price tag as well.
you just need to know where to search
and that can be tough here in Japan!