Hi there! I never purchase any bags from second hand stores in Japan before (I did bought some Chanel costume jewellery teehee), but basically the main and chained ones (like Daikokuya, Brandoff) you always see at prime shopping locations are pretty reputable in Japan. Even though I do not plan to make bag purchase at these stores, I always go in and have a look when I walk pass them...you know, for viewing pleasure! Just two weeks back I was browsing one of the second hand stores at Shinsaibashi, and saw a brand new B25 Rose Azalee GHW up close in the display case...it's not like you can see (and drool over) bags like that on display in H boutiques right?!
Hahahah yes, very true! You'd never see this many B/Ks in regular boutiques! I personally wouldn't buy either but it's always fun to look around