Good golly has this thread gotten long! I've read every post and really empathize with those who have gotten the two-toned ones - it is distracting! And if you got a good one, yay!
I have the two tones, but not nearly as bad as some I've seen. For most lighting levels it is barely noticeable on mine. I'm going to keep the one I got from Amazon. Here's why.
I went to Best Buy to see if I could get a two-tone free one. The first one I got was really noticeable at all light levels. So I exchanged it for another one. The second one was really brown, there was no blue at the bottom except at the highest light levels, 20+. But the brown was kind of muddy and really distracting. I guess I prefer a bluer or whiter tone. It went back and I got my money refunded. I cannot imagine going through more exchanges. It was frustrating. But, the Best Buy people were super nice and gave me no hassle. Highly recommend trying them out if you have one where you live.
That's the update from the robot.