日本的rc 店推介？

Sigh ....  

Tokyo 間 RC champ 剛汁咗 ...

So, best bet in Tokyo is Super RC   -->  //www.super-rc.co.jp/shop/tokyo.html

Go Osaka, you can visit RC champ main (ops.. solo store now! )  -> https://www.rc-champ.co.jp/Champ_Web_Main/Shop/about.html

You can also do online shopping, such as amazon jp, order and ship to Hotel, lower price usually, but no tax redeem ....
FYI, price is so similar to HK, unless some special clearance items, or parts. (ie: mini-Z parts)

For Tamiya ... it is cheaper in HK .. (創昇 for example) ..

But for Kyosho, it is marginal cheaper in Super RC ..

TamTam 就比 BicCamera etc 大公司 平小小 但比 Super RC 貴 ...

RC champ d 野好齊 ...