Is it possible to make one of these robots cheaply? It seems like the cost of actuators (which you might need dozens of) and to a lesser extent sensors would m

Is it possible to make one of these robots cheaply? It seems like the cost of actuators (which you might need dozens of) and to a lesser extent sensors would make this cost-prohibitive for most uses. For instance, if you were replacing a human salary, it might make sense to purchase a hundred-thousand-dollar robot, but if you just want something to pull weeds in your yard once in awhile, it might be hard to justify spending more than a couple thousand. If the parts alone cost tens of thousands, then that's a pretty big economic limitation on how the technology gets used.