Re: A 'proper' use for the buttons
@Scoured Frisbee (and probably others):
Are readers aware of https://www.raspberrypi.org/products/raspberry-pi-zero-w/
With Raspberry Pi Zero W at £10/$10 or so retail, quantity one for the last year or two, plus a few bits of low cost glue, some people might be rather more interested in those than something closed and impenetrable and relatively inflexible from Amazon.
Or combine the two, as per this article from MagPi magazine a couple of years ago:
https://www.raspberrypi.org/magpi/hack-amazon-dash-button-raspberry-pi/
Have a lot of fun.