This is even more so with taobao/jd. You need a proxy like superbuy but sometimes I'll find a product which costs X at the "root" on taobao/jd costs say 1.3X on aliexpress, 1.8X on eBay and 2*X on Amazon. Numbers can be even worse, of course.
For the cases i bothered to look up, i was looking at a 6x increase going from Alibaba to Amazon.
(been looking at automatic soap dispensers, fwiw - after hours of research however i gathered that all are trash and didn't bother to find out if was going to get lucky)
