You should be able to get the date and time from the flight log file using DJI Assistant. However, all of the location data is encrypted, so you won't be able to extract any of that data.
There was indeed only one 3rd party seller in the buy box when I created this thread. But, yes, now that Amazon Prime Big Deals is over, you're correct that Amazon is now cycling the buy box to show the best available price since nobody is...