Definitely some major quality control issues. Most of which apple doesn't like to admit. I went through 5 replacements and each one had different issues.
1) Multiple dead pixels + major backlight bleed
2) Yellow tint + Creaky
3) Yellow tint + bad backlight bleed + bad battery
4) Creaky...then my computer just randomly died a few days after having it and it wouldn't turn on.
5) Now I've finally won the RMBP lottery..or so I think. Pure white samsung screen, good battery, minimal backlight bleed, not creaky.
No consumer should have to settle for less when spending this kind of money. Nor should anyone have to go through 5 replacements to get the right one. I just find it funny that I've had "geniuses" tell me there the creaking/clicking was normal on my macbook meanwhile their in-store models didn't have the issue nor my new device now. -.- Also it's funny that these apple staff didn't know how to reformat my computers hard drive too. Really? I'd make a better apple "genius."
Maybe 2014 is a new year for apple QA though because the perfect model I have now is from the second "production" week of January '14. All my other defective devices were from November '13. Doubtful but hey, we can dream right?