Getting a bargain in any of these countries has a lot of variables associated with it! It depends greatly on what's the current exchange rate between the £ and their local currency; what items they've bought when their currency was favourable to them vs. the ¥; what the market conditions are in (any promotions on offer etc.)
Back in 2008, the exchange rate between the £ vs the Saudi currency was very favourable for anyone coming from UK. Such that the Nikon 80-400 VR was attainable for a mere £500 and the 24-70 for £800, and the list goes on. That's not the case now, unfortunately.
I know you've not asked about the Saudi market, but I just quoted it as an example of how currency and time of buying (you and the local dealer) makes a huge difference.
I can still find amazing bargains, so long that I look for items that the local dealer has bought when the Saudi currency was strong vs. the ¥. Due to that, the local price would be "relative" cheap.
