I ordered mine when the counter was around 400 sold. I got mine today from UPS. However, I experienced the same thing that jdavidse did. The tracking number said it would get here Thursday, but then it said it would get here a day earlier. it did not, but came the day it was originally scheduled for. Yes the camera is a beast. I shoot mostly video and the new features help alot. I know people say its an incremental upgrade, but in reality its not. They have upgraded quite a few things on both the video and photo side.
Also my serial # sixth digit is a 4 as well. No light issues here, just happy shooting.