Will the iPhone X be the fastest depreciating iPhone ever? When Apple bring out a new iPhone next year, with TouchID and refined facial recognition, surely the X will be worth a fraction of its purchase price on resale? I’m thinking that the iPhone 8 Plus would be the most economical upgrade to a 7 Plus this year, then purchase the refined X next year. Anyone have any contrasting thoughts? The X is still very tempting purely for the form factor change.