Let's worry about Electroneum getting their crap together and releasing funds to their ICO investors, before you pay off your mortgage with ETN.
They have a LONG way to go and they haven't done much besides raise $40M and then get hacked.
Best of luck to anyone who put money into ETN but their team has not inspired any confidence they can execute on their vision of being the most "accessible cryptocurrency"
I mean I'm an ICO investor too. But I have made a bunch of money ey mining and trading the volatility. I'm not expecting this to sky rocket tommorow. I expect a year or two for 1 dollar. Which is totally doable with current market trends.