I had a 5S; upgraded to a 6S and spent a year with it, but I really hated the size of the phone and realised that small phones were entirely gone by the end of my time with the 6S.
I tried Android for a while but it was Samsung’s Android and was not for me, I was frustrated and annoyed after every interaction with my phone. After a year of that I went and got an iPhone SE. I’m still very happy with my choice. (Although my AirPods sometimes cut out and I think its due to the size of my Bluetooth antennae)
I buy a fair amount of Apple stuff, I’m on the highest iCloud storage tier, I have AirPods, Mac Pro’s, MacBook Pro’s etc; if they have /any/ customer profiling at all they must realise that I certainly have the means to “upgrade” but doggedly refuse to do so.
When I picked this phone up I bought apple care for as long as I could. I will attempt to extend Apple care on this phone (or buy a new SE if it’s available) before support on this expires.
How else can I show my support to the small phone factor?