In my opinion, the iPhone 8 Plus is actually a much better value due to a couple factors overlooked in this article. For one, the display on the iPhone 8 Plus is a higher resolution with a greater dpi, providing a sharper picture and allowing native playback of 1080p content. The iPhone XR, due to its lower resolution screen, will not be able to playback full HD content in it’s native resolution. In addition to this, the iPhone 8 Plus will provide better quality photographs as it contains dual lenses, allowing for optical zoom. If you ever zoom in while taking a photo, the iPhone 8 Plus will be infinitely better.
It is true that the iPhone XR contains a better processor, however, the A11 processor contained in the iPhone 8 Plus is more than adequate for today’s applications and it is doubtful a regular user would notice any real-world differences.
It really comes down to what you are looking for in a phone as to which is a better value.
If you are looking for a phone with, on average, better specifications, then the iPhone 8 Plus is a much better deal. You are getting a higher resolution display, a better camera, 3D Touch, and a faster method of unlocking your phone using the fingerprint scanner. All of this, and it’s cheaper than the iPhone XR.