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Well this has probably swung it for me - this and the poorer colour range. http://www.cultofmac.com/254489/retina-ipad-minis-experiencing-image-retention-display-issues/

And I've done the test and after 3 minutes, my rMini suffered image retention. What a shame. Now we know why the Mini is cheaper than the Air - the screen is just not as good quality.

So looks like my Air stays and the rMini goes back.

I think I'm going to skip this test. If I ever notice 'real world' problems I'll take to back to Apple store where they will happily exchange it.
 
I think I'm going to skip this test. If I ever notice 'real world' problems I'll take to back to Apple store where they will happily exchange it.

Yeah probably wise. Was needing to decide between the rMini and the Air anyway and wasn't greatly pleased with the rMini colours so this helps me at least.
 
I think I'm going to skip this test. If I ever notice 'real world' problems I'll take to back to Apple store where they will happily exchange it.

I agree with you on this. Ignorance is bliss, and I doubt I'll leave a page/site/photo up for 10 minutes at a time so maybe I'll never notice this.
 
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