I don't understand how can someone spending $1000 to almost $2000 for a device and accepts it would be "naturally bend".
If you understand physics then its a no-brainer, now why Apple didn't account for that is the more annoying thing.
Either way I have an iPad Pro that isn't perfect, it has some slight distortions, but would returning it really do anything. It isn't bent, the aluminum on back has a distortion in certain light but the speakers, screen sensitivity, screen quality/uniformity are all amazing and it unless you get a microscope and look for distortions or things you don't like they will be there. Unfortunately bends are normal, but those are the one case in terms of aesthetics that I'd return it to Apple.
IN the end a 1mm or less piece of aluminum will not be produced without flaws, nor will glass or anything else, there is no such thing as perfect or completely symmetrical and no distortion, defects, or errors. We have all gotten used to such amazing tech our standards of what counts as "acceptable" has reached un-reachable heights. I plan to keep my imperfect iPad for 2 reasons...
1.) It looks amazing and works just as I require... and then some.
2.) I'm tired of the mindset or idea that perfection exists with anything man-made or not, and is a must... I have severe anxiety and diagnosed OCD and these issues have been driving me nuts for 2 months, but I'm done playing the return and exchange or the: "wait until the new one comes out" spiel. I'm done feeding this unrealistic idea that that a "perfect iPad" or anything perfect exists.
I'm not saying anyone HAS to accept it if they feel their iPad or whatnot is not up to par or has any cosmetic or issues at all, but simply saying I want to enjoy my device now and use it, (instead of constantly comparing, worrying, and wondering if I can have perfection)... cause I can't, but thats okay, and in an odd way imperfection can be perfect in the eye of the beholder.

*Happy Sunday everyone.
Kallum.