"This means the AMOLED screen is more power hungry than the LCD unit on the iPhone 8 Plus"
A lot more.
According to displaymate.com, the iphone 7 (4.7) consumes a maximum of 1.08W, the plus 1.5w tops. Meanwhile the X goes from 1.75 to 3.25 depending on how much white is.
For comparison, the note 8 tops at 2.05w.
So four times the price of my Lenovo P2, half the battery life, no headphone socket. Nah y'alright.
no h jack (checked)
top notch looks horrible (checked)
poor battery life (checked)
highest priced of a phone one can imagine (checked)