I don't understand why Apple are releasing 2 separate models on 2 different dates. I do understand why people choose there products but IMO I feel there not the premium product they used to be, and they haven't exactly brought anything new to the market since the 4S. It's the same with Samsung since the S2, still do prefer Samsung though.
If it is too dark, we can light it up with table lamps.
So no issue for Apple to release iPhone 6 with dark display.
By the way, this is called dark side and the force is strong. I can feel it...