Was strongly considering buying from B&H because of sales tax, however after these threads it seems like Im going to have to buy from Apple so I can return in case of a bad screen.
I don't know about BH (their return policies seem pretty strict), but I originally bought from best buy, went through three awful samsung screens, and eventually a best buy rep just recommended i go to apple. went to apple store, and though the manager told me that technically any returns or exchanges need to be done through best buy, he understood that this has already been a huge pain, so he'd be willing to accommodate me and do an exchange. opened it in store, had pink corners/yellow tint/ etc, exchanged again on the spot. new screen is best one i've had so far but far from outstanding. there's still a very warm tint (wouldn't quite say yellow), but it's warmer and dimmer than pretty much every screen in my house (phone, external monitor, old macbook, wife's 2012 rmbp, etc.). got sick of all the time wasting, and so I've decided to just deal with it for now. I figure if it really becomes intolerable months down the line, I'll just take it in under the warranty, but i just couldnt afford further hits to productivity right now.
as a side note, one rep at the apple store mentioned to me that the uneven coloration on the screens is a known problem and apple was planning to release some kind of firmware or software update in the next couple weeks. not sure I buy it, and not sure what kind of OTA update can fix faulty panels, but I thought I'd mention it since I haven't seen any talk of this in the forums. He didn't say anything about yellow tinting, though it was clear he had dealt with many such complaints.