So I have not to be concerned about?
I wouldn't but it's entirely up to you, for me it was more the effort required to try get it swapped out.
Besides I look at my iP5 now, had it 6 months without a cover and there is almost no paint on the corners of the bezel anymore. But then you won't carry your iPad around in your pocket so I wouldn't worry about it.
Unless it affects the screen itself you'll be fine.
Thanks! So is it inevitabile that as the months passed these signs will be more And more, and it has no sense replace the iPad?