Ok, just do a search on refurnished or refurbished and you will know what i am talking about. And check what William wrote about the Apple warrenty.
Second, I have an uncle working for Philips Electronics and he says that it is a standard of repairing the stuff they get back, repair it and sell it.
They do it even with all the cars that come on the boats/trucks. If they got some damage, tbey repair it and still sell it. It is normal that they do this. Otherwhise it would be impossible to win money. apple would be loosing and would be bankrupt already.
Hopefully these are enough sources for you
You're missing the point(s).
The warranty speaks about what Apple MAY do - it does not say what they are doing. In fact, it says they may do either.
What your uncle who works for Philips says is just great, if he knows about what Philips does. But it doesn't have even the slightest relevance for what Apple does.
What Apple does with warranty replacements is to give the consumer a new unit in a generic, non-consumer package. I don't know for a fact what happens to the defective unit, but I'll bet dollars to donuts that it goes back to China where it is repaired and then sold in the Apple "outlet" section as "refurbished."
Let us know when you have some facts that are relevant to this discussion, please.