Well how many people are actually going to be buying a set from China to get it?
Well both of us I think
but I don't know where your got those two knock-off but I have gotten my Ninjago Ultrabuild Knock-offs from China.
Technically, you don't have to get your sets from China alone; these knockoffs are everywhere: Malaysia, Hong Kong, etc Night Markets and Private-owned toy stores are the places to look out for them. I've gotten 2 from Malasyia, one from Singapore, and one from China.