if all it could do was operate a lawn mower and a shovel, the annual value to a homeowner in the north east is ~1-2k depending on lawn size assuming they value their free time at the same amount as their hourly wage.
what you have to keep in mind is homeowners salary is way above avg salary so anything you can do to effect them has a much larger impact than it would seem at first.
what you have to keep in mind is homeowners salary is way above avg salary so anything you can do to effect them has a much larger impact than it would seem at first.