And I'm sure you will use your iPhone 8 in the same ways that you do now. Will just do more and look different
Yes but looking different and especially having a smaller footprint is more than half the battle when Apple are trying to entice us to upgrade in a market offering ever diminishing performance returns. Heck, a lot of people upgrade purely to get a different colour so Apple absolutely do need to continue with their previous biannual design changes in order to address falling sales.