Funny how iOS fanbois have resorted to resale value as their last / only argument. Oblivious to the fact that Apple products are the ONLY products available on the market that bear that OS. With zero choice, they fall into one of two categories: either can afford to pay the Apple tax for a new product, or they can't (or won't) do that and buy second hand. The first category will try to get as much money back as possible, hence keep the second hand price inflated.
Either way, they will never experience the product OS richness of Android: not only plenty of devices, but also plenty of Android-based systems to choose from. All this for a lower price paid for NEW products, not used ones.