i make $8aud a day with a 1080 so i'd say go for it, the 1070 is supposed to be better at mining than a 1080. depends how much you pay on electricity, i dont pay for electricity so any money is profit
If you live in southern California then there's no profit. Running your mining rig 24/7 would put you in the high usage bracket for Edison and that's $0.31/kWh. You either break even or lose a couple dollars to Edison.