Let me break it down for you.
iPhone 8 256GB is $849.99
iPhone X 256GB is $1149.99
That's a $300 dollar price difference (not $400).
So the question is what are you getting for $300? Is it worth it?
Think about what your actually getting here:
- Face ID (and all the hardware with the projector depth mapping, etc.)
- Animojis
- Dual Optical Image Stabilization in both cameras on the rear of the iPhone X (the 8 and the 8+ only have one camera with OIS) this means less blurry photos, and the X will be better for darker lighting conditions
- Full size OLED high resolution "Super Retina Display", better colors, resolution, you can get more than 11 inches close to the screen and it'll still look good
- Telephoto Portrait lens on the iPhone X's dual camera has a better aperture than the iPhone 8+ (f/2.4 vs. f/2.8)
- Everything in the 8+ is packed in a "very close to 8" form factor
- - 21 hours of Battery Life instead of 14
- - Bigger than 8+ display
- - 2 Rear cameras instead of the 1 on the 8. This means no portrait mode, and pictures will not look as good.
So now you look at the bullets above, and think if all of that is worth $300. If so, then yeah the X is worth it otherwise, you can get the 8. The only plus side it has over the X is that it's got Touch ID, but given that what Apple said was the Touch ID API is exactly the same as the Face ID API for authentication, your not missing out much at this point. Whether they bring it back is a whole different story, but instead of guessing the uncertainty, if you look at what is actually there on paper that Apple is trying to sell you... the value proposition might be there.