The iPhone X is targeted at a demographic of people with a lot of disposable income. The kind of people who, when their $1000 phone breaks, will simply go to t

The iPhone X is targeted at a demographic of people with a lot of disposable income. The kind of people who, when their $1000 phone breaks, will simply go to the Apple store and buy another. So think of it this way: If having a fully glass front increases sales of replacement parts and devices, then having both the front AND back glass will DOUBLE those repeat sales. Apple is not a nonprofit, and they didn't become one of the wealthiest corporations on the planet by being generous and altruistic.