I strongly suspect they will buy the cheaper and possibly shittier Android. Even though it won't last as long. Those monthly payments are a drag yo.
Look I'm glad you like the iPhone, but to say its the greatest product in all of human history is a touch hyperbolic. Yes its a great bit of engineering, but its not like it singularly went from 0-100 by it's self.
Let us not forget, the only thing innovative on the original iphone was the large touch screen. Everything else was a compromise. The battery, the CPU, the RAM, the ability to run apps, all of them were no where near as good as the nearest rival.
But Apple managed to catch up enough to appear ahead of the curve, and well done to them. But let us not forget that without android, the iPhone would never have advanced. (Dont read this as me being an android fanboi, I have never owned one...)
But to the point, in terms of greatest product, I suspect its probably either modern farming (and infra, so tractors) or something medical.