Thought you guys would like this story - "How to make millions of hoverboards (almost overnight)".
It’s an excellent piece, telling the story of how factories in China all jump on reverse-engineering and manufacturing a product once it becomes a hit. It’s no wonder then that there has been a rash of fires from poorly made boards, resulting in some governments banning them.
The IP issue is also key. These guys care less about any of that, and just make products as fast as possible.