most obvious alibaba or aliexpress goods on Amazon can be bought cheaper from one of the other places, and if it's a weird item (like a bicycle hub motor) it'll

most obvious alibaba or aliexpress goods on Amazon can be bought cheaper from one of the other places, and if it's a weird item (like a bicycle hub motor) it'll generally be from the same merchant group. usually the copy/paste pictures and description are a good giveaway.