[pfg]

I'm perfectly happy with the performance of my iPhone SE (2020), and it's still receiving software updates, but the battery is severely degraded. The same was true for my first-generation iPhone SE; I was able to get a cheap replacement back then due to Apple's battery replacement program related to batterygate.

Access to cheap replacement batteries would definitely have an impact when deciding whether I should replace my phone or not. I believe Apple even mentioned the battery replacement program being a factor contributing to lower-than-expected sales a few years ago (sorry, can't find the source).