Beautiful Monitor, with pixel errors

The image is, after a short calibration, very nice and also the Zokken the monitor is great!
Unfortunately, one of the 2 monitors that I had ordered a pixel error (dead pixel) relatively centrally.
Amazon has the problem-swapped, unfortunately this also had a sub-pixel (red did not).
Since one that rarely sees and I did not want to swap again I leave it at that.
On closer inspection, I have now also found a sub-pixel in the other monitor (with black pictures of the pixel is red).

Buy 3 monitors and all pixel errors ... but seems nowadays probably be standard? I did and read the well 4 Pixel errors in the middle screen area and x CM would be apart, still ok and would led to no exchange me smart. Well I do not know.

Would I bring again Asus, or the same monitor I can not say. The error really do not bother me, but if my head off and stand out on but I am annoyed already.
I would probably just to swap as long to get 2 monitors without pixel error, but in addition I had no nerves.