It's kinda nice to use one, but I hate the fact that we burn energy to burn energy.
I would like to see more (and maybe cheaper) options/alternatives for manual operated walking pads like the Walkolution [0] or Nohrd SprintBok [1] (which seems to be a Chinese white label [2])
0: http://Walkolution.de 1: https://www.nohrd.com/us/sprintbok/ 2: https://de.aliexpress.com/item/1005005169772365.html