I just moved moved from iPhone 6s to a new android a few days ago, and I'm really pleased with the features Apple staunchly refuses to add to their phones. Moreover, Apple's software has gotten more and more proprietary with every new OS and device release. I finally broke down when I was just trying to transfer some photos to a computer and Apple's stupid autosync deleted ALL of my music. Amateur mistake, I know, but sometimes I'm trying to do things quickly and Apple gets in the way every time. So will iPhone 8 succeed? I don't know, but they sure lost me with their most recent releases and their creeping control of my stuff.
Also I saved several hundred dollars, got a faster processor, more RAM, more storage, more customization, and an overall better experience with the new android. Agreed iPhone 8 is not worth the asking price. None of their hardware is anymore.
For reference, I have a macbook air 11", iPad Air II, 27" iMac, and various old iphones, etc. I've been a Mac user for years and this is the beginning of my transition away from their stuff. They are no longer innovators, and their design culture is myopic and cultish, designed to extract as much money from their customers as possible. Many will keep on playing that game, but I gave up. Bye Apple!