I personally miss the 5s! What a game changer

Two questions in this post. I have the XS Max (used) currently but I don’t know which model above to get.

I thought of used for the newer models but they’re still expensive. My phone before this was a 6 plus I still have but that battery went slower obviously. My 5s is the only phone that has officially lasted through all of this.

I see people complaining of their iPhone 11s battery’s going out currently so I imagine I’ll have to keep upgrading, but I really don’t know if it’s worth it paying PS5 prices for a used phone. Should I payment plan a new phone?

And, Is it worth it to get the 14? Or anything below?