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.
I just visited Bangood.in and the prices in USD are indeed different than on Banggood .com. For some reason the shipping comes up in Candian dollars so there may be some exchange rate thing going on. Needs further exploration.