Did you read my post? Apple doesn't recognize yellowing and retention unless you complain about that. So it's natural that returned retina laptops will be untouched since the customer returned the machine without any issue that Apple considers malfunctioning or defect.
Yes I read your post. Did you read mine?
If you return your laptop for a 'yellow screen' or retention issues that screen will get replaced. Whatever that laptop is 'returned' for will get replaced, weather it is valid or not valid on the person returning the laptop. For whatever reason the laptop gets returned for that part will be replaced, period.
I am very aware and have first hand knowledge of Apples return policies. I know exactly what they do and how they do it. If a laptop gets returned for a battery even though the battery is 'good' and tests as 'good' it is replaced. Same goes for any part in which the laptop is returned. Screen, battery, touch pad, whatever the laptop got returned for, for whatever reason, that part is replaced.
Even if it tests 'good' and 'functional' it gets replaced. Just because it 'tests' good at the time of the test doesn't mean it will be reliable. That is the reasoning. If it failed once, twice whatever according to the customer, it gets replaced. Apple will lose money each time a machine is returned more than once. The refurbishment process eats away at Apples bottom line.
Apple does acknowledge " yellowing and retention' issues. Now that isn't saying that refurb may get a new screen with those same issues. But at least that machine is 'checked' before it leaves the factory for such issues.The person doing the checking determines if it has those issues or not. Results may vary. Not every new macbook pro coming off the line gets checked. I know which I would rather have.
New laptops coming off the line will have more issues with a screen than a refurb will. That is a guarantee.
