I’m not the person you replied to, but I would love to have more ARM hardware for running tests on. A lot of what I write needs to be separately tested on each architecture.

A middle finger to those you’re jailbreaking from.

They are less expensive.

I’ve encountered a couple of people who use them as remote cameras to observe their 3D printers. That suggests a bunch of other possibilities for things you want to be able to watch or listen to without standing over them and without buying an extra webcam to cover what might be a temporary need.

Removing all the system-level bloat that makes them unpleasant to use, perhaps stripping one down to the level of a fancy MP3 player with its microSD slot. Also having “disposable” phones to play with various rooted tweaks. All of my easily-rootable phones are too valuable as daily drivers to experiment on, while all of the ones I don’t care about also don’t have rooting methods yet.

I’m keen to put PostmarketOS on them all and build a Kubernetes cluster. Just don’t ask me what I’m going to run on it!