Quoted from Homepin:

I know, two of the largest factories around that assemble Apple stuff are within 10kms of my factory here in Shenzhen.
The Taiwanese owned and run Foxcon also assemble a lot of things for Dell, Lenovo and many others. That's just what they do best.
Apple design is far from "smart" or clever engineering. Those discreet vents you talk about get clogged very easily in the real world. I get to see this garbage being repaired almost weekly in the electronic markets here, I have first hand knowledge as to just how unreliable Apple stuff is.
In any case, Apple products just are not as easy to use in the real world as practically anything else. I am talking about using computers for actual work - Apple is too restrictive and limits what you can do.
Apple stuff "looks" pretty (to some) but that's where the perceived advantage finishes - IN THE REAL WORLD!
Needless to say, out of more than 30 computers in the Homepin factory not a single one is Apple and they certainly will never be while I'm running the show. I want to actually get work done, not sit around "looking cool" - or is that "kewl"?
Flame away "Apple fan bois".
(added)
Typed on my (made in China) X250 i7 ThinkPad running Win10 - LOL