GPU mining will never die, Now we have a few massive projects Raven as example ones completed will be better then ETH and new coins with better algos will come out and ask for our support.
My Point .....I'm mining raven
The other thing is ASIC is a door stop once it's used up . if they could some how over come that i think it might be worth it . as it stands now what they do it suck you in with low prices then as it things get better faster with ASIC you need 10 k worth of shit or more just to make a few bucks a day with ASIC ... look at BTC and what a 16 th ASIC miner gets you a day and then go back a few years and see what a ASIC 1 th would give you with ASIC miing it was better more Profitable etc till they destroyed it for all but the rich after greed kicked in all I"m saying is why ? .there is more then enough to go around and all ways will be why be greedy share it.