Components? What exactly would be a "product" for you then? For all intents and purposes, I get the exact same quality from AliExpress and Banggood that I get from Amazon, just the latter charges me twice/thrice. Even my experience with refunds has been better with the Chinese than Amazon who absolutely doesn't want to part with the money they wrongly took from me.

I wouldn't buy expensive electronics like Mobile phones and TVs from Chinese shops. Cups, a torch, key fob, package opener, tape etc are all "products" I bought from AliExpress which would have cost me at least twice as much from Amazon/Walmart. Why on earth should I shop at American companies again when they resell the same stuff to make extra profits off of my back??