I see both the pink and green discoloration, but like everyone has been saying, it depends on what you can live with. Personally, I would prefer an all-pink screen to one that has green blotches (I have both).
You mentioned living outside the US -- I do, too. I requested a replacement for my all-pink PW and one was sent to me in a matter of days, with green blotches this time. They told me I didn't have to send the original one back. While I am actually less happy with the replacement (the green bruising seems to provide less contrast, especially in the dark), I didn't bother requesting for another replacement seeing as they don't ask for the "defective" units back.
Like sparklemotion has suggested, try using your PW for a few days/weeks to see if the blotches are something you can live with. The green bruising on my PW does bother me, but sometimes I get so immersed in my book that I actually forget it's there. Hopefully it's the same case for you
