This is not cosmetic.
This is functional.
Apple should be doing free repairs for _ALL_ machines with this problem.
Time for a recall.
If Apple doesn't do a voluntary recall then it is time for a class action suit.
I'm not a fan of class action suits but Apple's behaving badly on this.
Apples quality control has been on a downhill spiral, and they don't help themselves with poor in store and phone support that basically tries to either get you to go away, or buy a new product.
since i have owned Macs the newer ones have had more and more problems until now i wont buy apple anymore, i don't trust them anymore, and the more they make them all one piece ,with soldered down ram and proprietary drives and ports makes me trust them even less for the price they are charging i expect QUALITY, not cheap crap
i have a Mac Mini Power PC, still running as a media and file server, has never been switched off or moved for years no problems
My Macbook Pro, Died , GPU issue (not apples issue technically, but the fact that they denied there was an issue and tried to sell me a new mac book when i took it in store, despite the fault being widely know, had to threaten legal action, Macbook was 1 week Out of Applecare)
My iPhone 3G, "melted" is the only way to describe it.. battery got so hot the plastic back warped... again, had to fight with apple to get it replaced, and that was IN warranty, 8 months old, they argued that I had pierced the battery
My iMac HDD died, the drive was on the list of faulty parts seagate listed as covered under a recall, i didn't get an email from apple because their system listed my drive as "ok", again had to fight for a replacement when it DID fail, creeping bad sectors that i had to use third party smart software to detect as apples own diagnostics lied and said the drive was fine, whilst the recall was still in effect, and they STILL ARGUED that the drive wasn't covered and i should pay "as parts fail" despite the drive being a little over 3 years old (around 3 months out of apple care), again had to threaten legal action and supply a statement from seagate that the drive WAS listed under the recall
now its not bee all bad, My 1st Gen iPhone is still going strong, and my mother is still using it, the battery even still lasts 2-3 DAYS rather than the less than one day that all the other iPhones ive had have lasted
My iPad 1st gen , again still going strong, and again used all the time by my mother.
I have since built a big, expensive PC for gaming, kept the iMac for Office and productivity, though i now run from an External SSD as my boot drive and use the internal storage for stuff i don't mind losing, if it fails again, im going to take it out and leave the iMac diskless internally.
I likes Apples OS, i love it, compared to windows its my OS of choice for productivity, i just hate that is on Apple hardware, because the hardware is awful, its cheap crap, built cheaply, and sold at a massive markup to be desposed of and replaced in an endless churn to appears shareholders..
That wasn't what apple was when it created the products i enjoyed using..
It would appear the old saying "power corrupts, Absolute power corrupts absolutely" can also be applied to money, as the more money apple has made, the crappier its products have become , more and more like polished turds, they sell you $200 netbook in a shiny case and charge you $1000
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Every single equipment manufacturer has issues. Every one. I sell multi million dollar gear that still has bugs and issues. But Apple just fixed my rMBP in two hours. TWO. HOURS. Good luck getting that service from Dell or HP or anyone else.
If it was Dell or HP id have probably got a screwdriver out, popped down to scan, picked up a part and replaced it myself if it was out of warranty..
Proprietary parts for no other reason than to cut off user upgrades and service and force sales is just poor service and evil