[Buying]  Where to buy while visiting Japan?

Going to Japan in Sept, looking for current suggestions of where to hunt for beyblades while in Japan (tokyo, osaka)?  Did a search of past threads, saw TRU, Yodobashi Camera, and Bic Camera mentioned.  Anywhere else good to check out?
Honestly unless you're going to japan JUST to buy beyblades I think you might be able to find a store that sells beys at the place you're going to. Your best bet at new and maybe some old Beyblade products are stores you mentioned, Ive had a really good experience going to a store called Book-Off because they sell older beys and have a wide variety of disks, frames, drivers and layers , but I don't know if all stores sell beys
there are mandarake stores that sell beyblades