For the record, I think for some who do have an iPhone 8+, {such as yourself}, some simply can’t afford the most expensive iPhone, which there is nothing wrong with having an older model iPhone, essentially when they all really do the same thing, it just is the separation of some exclusive features for the higher end models.
In a way that's true. I don't like contracts so I pay for the phone in full. Technically spoken I'm easily able to spend €1259 + 229 (Applecare+) for the max instead of €799 + 169 for the 8+. I'm pretty sure I'd like the max better if money was no factor, but I'm not that rich that a €500 difference doesn't mean a thing to me. To me that's a lot of money. If I were convinced of the benefits of the max over the 8+, I wouldn't hesitate to spend the extra cash. But I'm not (yet).
The upgrades on the max, except for it's looks, don't mean that much to me. Of those upgrades, the camera is the most important to me. But then again the 8+, although a little less, is pretty good too in that department.
The max doesn't do anything with that big screen, like splitscreen or pip, that the 8+ can't. It's just bigger. Which is nice when looking at video's, but that's about it. And 90% of my time on the phone is reading against white backgrounds.
I'm just not sure if the max is worth an extra €500 to me. Especially not with the antenna problem that Apple is still silent about and the oled screen problems (eyestrain, off and shifting colours). And the knowledge that we're only 11 months away from the next latest and greatest. Still on the fence.