At what point do you say 'screw it' and get a refund? For me if, after two returns, it's still defective I'm taking my business elsewhere - either another store, online or a different product all together.
Well, I have been to 4 different stores, and tried several different models of the 64GB 4G (white, black, AT&T and Verizon). Unfortunately, I really cannot abandon the iPad platform (and really need version 3 for testing of retina apps) because I am a iPad software developer (which is funding a bigger project i am working on), besides that, i also use the iPad everyday because of the LTE and portability when I cannot have my MacBook Pro and my iPhone is too small for serious work (yes, i can accomplish serious work on it, it has become much better at being a creation device in the last 2 years.) Trust me, I have thought about it, but it really cannot be an option for me.
Also, just to list the ones I have had:
1st: cluster of dead pixels or cluster of dust
2nd: Dead pixel and a piece of dust stuck under the screen
3rd: Dead pixel and 1 LED backlight dead, making a very dark orb on the side of the screen, also damage out of the box
4th: 2 Pieces of dust stuck under the screen and a green bright stuck pixel
5th: Major Light leaking from an angle (like this:
http://att.macrumors.com/showthread.php?t=1342106) and a dead pixel
6th: clusters of clusters of dead pixels or dust
7th: Very deep, dark scratches out of the box all over the back of the iPad, and a dead pixel
8th (current): Dead pixel and dust stuck under the screen, also after I went home I realized there were smaller scratches on it too
This is not me being picky, for the most part I can accept minor things like screen tint, but these are huge issues I should not have to settle with, I have asked a few of my friends if they would accept that, and they also said no, one of my friends even has an iPad 3 with NO PROBLEMS WHATSOEVER, even after me examining it.