Japan is pretty chill though they like a cash-based society regardless of how much technology they have.
From vending machines to shops they avoid the high fees Visa and credit cards have so other than suica its really just plain old cash that gets the job done. What is really needed is more bitcoin tourists using the shops that take Bitcoins ^^.
That said the market penetration is there but the usage is a bit low as can be interpolated from the Bitcoin BTM machines in operation.
https://coinatmradar.com/country/107/bitcoin-atm-japan/I have noticed some bitcoin price tracking sites like Coindesk, bitfinex and other sites has added the Yen (Japnese currency) in the price chart along with the USD and EUR measuring. It shows that bitcoin implementation rate in Japan and rate of swap over the cash less society. I do not think that touristers will attract to use the BTC atm in Japan as they don't have enough tourist spots in there.
Having been to Japan in the last week trust me when I say there is a demand for Bitcoin machines in Tokyo and throughout Japan for tourists on the JR Pass using the local exchanges in Asakusa and Shinjuku at TravelX the exchange rate of a single Canadian Dollar was only 68 Yen per dollar while the best rate I found was a mere 72 outside of Narita.
The market Rate is 80-81 even with a commission rate of 5-7% a Bitcoin machine would still get 74/76 yen per Dollar and have more bang than using a currency exchange. The 7 Eleven Machines have a $5 Fixed fee and a near 3 Cent/yen per dollar fee so around 3% for me but it really depends on the persons banking what their cost is so BTM's do provide valid competition both on the Visa conversion side and the people who bring extra cash over as long as the machine has a decent set of bills it can recognize. Either way the spread is there for healthy competition.
CASH ABM -SERVICE CHARGE 5.00 Per Withdrawal
TOSHIMA-KU TOKYO 100.00 JPY @ 1.268300000000
SHIBUYA-KU TOKYO 200.00 JPY @ 1.259800000000
AOBA-KU SENDAI-SHIMIYAGI 500.00 JPY @ 1.255200000000
NAKAGYO-KU KYOTO-SKYOTO 500.00 JPY @ 1.250400000000
https://www.google.ca/?gws_rd=ssl#q=yen+to+cadCurrent Cad Rate 1.2375
With good food tons of shrines, anime goods, bars and good vending machine drinks + Rail passes money drips out ^^.
Hopefully not another machine in Ginza though (... hard as heck to find anything with all those buildings) Mumble The Snack
That said this is Gox's homebase there are users lurking around just not as many merchants at least haven't looked at how many use Point of Sale.
I do like how a city is crowdfunding in Japan using Bitcoin
http://www.coindesk.com/japanese-city-raises-bitcoin-donations-preserve-historic-park/https://coincheck.com/donations/16Making a small dent ^^