Occasionally, in the past, when I've landed on a page at Banggood.com I will see a price for a brief second that suddenly changes right before my eyes based as far as I know on geolocation. It happens so fast it would be easy to miss that it's happening.
That said, most of the prices I see on Banggood are somewhere between very good to reasonable. In the future I will try using a different suffix and see if there is any difference on my end.