The 2019 iPhone models are reportedly not going to cost more than their 2018 equivalents, with some configurations actually going for slightly less. If true, this will break a multi-year trend in ever-increasing prices for iOS handset prices.
Update: Apple just took the wraps off the iPhone 11, which will cost $50 less than the iPhone XR. But all configurations of the iPhone 11 Pro and Pro Max will cost just the same as the iPhone XS and XS Max.