Just to update:
With what happened in Paris recently, i knocked the idea on the head (plus I've already bought too much crap), but i popped into Echigoya.
Quite busy with locals, and lots of toys.
3- 4 cabinets of pistols with about 150 models in each, and lots of boxed stock for AEGS and rifles. A few wall hangers, but most of the run-of-the-mill stuff was boxed ready to be sold.
Prices were good, to very good. A few i remembered doing man maths:
TM SCAR CQC- £220
TM Desert warrior - £55
G&P m249 Marine- Just under £300
VFC Mk12 GBB - £220-250 ish
Good thing is you know where you stand with prices in Japan.
In HK, i remember buying a camcorder years ago, and they mark up prices to reduce them down to mkae it look like you're getting a better saving (albeit still cheaper in the end than the UK), where as here- what you see is what you pay, no haggleing, no going about loads of other shops comparing etc