Looks like a good idea. We have a rental house, and one year we rented to a couple from Australia. The guy's father came over from Australia for a visit. We had an old roof of asphalt shingles and were going to have it replaced.
Australian guy was amazed. He said "This roof must be replaced every 25 years? I don't get it."
He said that in Australia, all roofs are made of metal and never need replacement.
I am chasing Decra (and other types) with some GC friends. I will post info later, If I go this route.
By comparison... the Decra type product does appear to be 2x or 3x of traditional AR asphalt regarding cost. But labor seems a touch less maybe.