Returned 3rd iPad to the store for display woes. QA with Apple?

Question

I bought two 64g 3g black iPads with apple on launch day. In fact I was the first one in the store. One had hair under the glass, backlight bleeding, and bad pixels. The other had bad pixels scattered and a little back light bleeding. Was going to get them switched the next day and the store said they had them and then didn't so I returned the two.
Yesterday, I picked up two new units that were on hold and one had a few dust things under the glass but neither had pixel issues. But the two units both have really really bad backlight bleeding around 3 of the 4 edges. I have heard this is the glue drying, but my first gen. iPad 1 of the same spec is what I would define as perfect. Is there any truth that anyone has seen with the backlight bleeding going away or dissipating over the last week?
The store is friendly about the issues, but to wait 13 hours, make multiple and unnecessary trips is very frustrating. I simply wonder what happened to quality control. Almost as if Apple decided to throw it out the window in favor of getting enough units out.
Any thoughts or suggestions on if this bleeding will go away? I really would hate to have to return the 4th one when I intended to buy two and so far only one of four has been mediocre versus the rest being unacceptable.

Answer 1

I also bought an iPad 3 64G and had to return it due to light bleeding. The second replacement again had the same issue. I returned it to the apple store but before accepting the 3rd replacement I asked to check for light bleeding and discovered it had the same issue. The apple representative opened a 4th iPad and surprise surprise! the same issue. At  this point they had ran out of stock so sent me the a different store. I was unable to check the 5th ipad at the store so took it home but again the same issue. I call apple support and a 6th iPad will be posted out to me once I return the 5th. Apple had no issued changing the devices and I can't fault the apple representatives who helped me but considering the ipad 3 is all about the screen, Apple obviously have a quality issue with the optical system and need to address it ASAP. It shouldn't be quantity rather than quality!!!!