That is true, but the story has more sides to it... Apple doesn't produce it's products either... they just other stuff and slap their logo on it. The big difference is that certain companies have a public image that they protected / maintain. What does this mean? I means that a known company is more likely to pay attention to defective parts ( either by increasing QA or by offering good support and return options ) than an unknown company who doesn't really care.
Not saying that "everything from a mighty brand is perfect", of course they can also send out faulty components... but chances are, you'll at least have someone to talk to and get the problem fixed if it were to happen... whereas with some other brand, you're most likely stuck with what you've got.
Everyone should decide for himself which approach is better... In my experience: being cheap pays off less than paying a "decent" price for a product from a known brand. That's also one of the reasons why people prefer to pay the extra for Apple products...
