You're getting downvoted (I guess because of the all caps and self proclaimed very good reasons?) but you are absolutely correct. Headphone jack + ergonomics + modern processor + price were the key selling points for me on the previous iteration.

I'm thinking to buy SE 1 while I can, even though I own 8. If I would break my 8, I'll either return to SE 1 or change to Android. I don't like new iPhones at all. I don't even like iPhone 8, I just bought it for its internals and I thought that I'll get used to big screen. Turns out, I did not.

The only good thing about 8 is that it's kind of water-resistant, so I can read books in my bath.

Damn. I just said upthread that I (an Android user who has never owned an iPhone) would make it my next phone because of the form factor, but you're absolutely right about this. I had forgotten. I certainly won't ever be buying a phone without a traditional headphone jack.

Hate to say it, but you should probably be eying your next phone based on what is on the market now - new models with headphone jacks are increasingly unlikely.

Then I won't be getting a new phone. I'm quite serious.

That said, the situation doesn't seem to be as dire as that. Last I checked there seem to be plenty of inexpensive phones that "still" have headphone jacks. It's ironically the top end of the market where people buy phones for signalling that you can't get them.

I’m still on my 6s+ for the headphone jack. And I really see no reason to upgrade, anyway.

But I would pay good money for a new iPhone with a headphone jack, if anyone at Apple is listening. Make it the pro super-duper model, with a $200 premium: I’m in.

But alas, I’m stuck on 6s+ for what seems like a foreseeable future.