I think that 1080 prices might go down as soon as the market is flooded with them. Don't count on AMD to force the 1080 prices down, these guys seem to be concentrating on the mid range, at least, for now.
You're probably right. Doom only gets annoying when it hits sub-30 fps. And I fall off the bridge for a millionth time
But discovered something this wkend: Train Simulator (ha ha) roasts my 980ti. Went to plug in my gaming headset into the back of the computer and the top part of the case (while not hot) was definitely very warm.
So might be changing my mind to a founders card; so hate this stormtrooper case (minus the awesome handle).