> If I buy a device it sure as shit better give me root

how's that been working out in practice? change the ring tone on your washing machine, dryer, and microwave already?

Those are all mechanical. I could if I fancied, but they're inoffensive and I have more pressing calls for my attention.

I didn't even know there were mechanical microwaves.

Never seen the ones with a mechanical egg timer as the time control? Those usually even have a mechanical bell.

Of course the microwave generator itself is not mechanical :)

> If a payment system is relying on my local privilige on some random-ass device to authenticate a payment

What makes you think it does?

In many cases you are not buying these devices, you are only renting them.