About the grey markets products?

I am a Chinese guy , could you pls tell me how many American would buy the grey market products ? I mean how much percent in USA . The grey market products are include the nike shoes , jordan , airforce one , airmax , nike shox .... lacoste tshirts , polo tshirts , bape hoodies , bbc hoodies , evisu jeans .....


And also , here is a site : www.sharenike.net


All of their products are copies , after you checking , would you want to take a try ?|||probably maybe 1%. most people if not all wont buy "grey markeys" products due to ethical reasons.