As with the usual poor versus good quality scenario, the initial price is higher but then you save a lot of money in no time. Asphalt shingles used to last decades because they contained asbestos. Since this was banned, their life expectancy reduced a great deal, regardless of what material was substituted, what it was called, or what the warranty stated. And now with the ever increasing climate changes, those roofs need replacing even faster. You never stop paying.
With a Roofs of Steel roof, you are finished paying. It will last a lifetime. In addition, you will realize up to 35% in energy savings.