The Akihabara ones anyway. https://twitter.com/marcan42/status/893784159851651073 … there's actually quite a few places that take it, but OP is... "slightly" overestimating.
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Japan is an interesting place for Bitcoin experiments. Obviously not anywhere near what that guy thinks though. https://news.bitcoin.com/rollout-of-260000-bitcoin-accepting-stores-in-japan-begins/ …