They're probably realistic, but I'm not sure they'd make a lot of sense for most places right off the bat. They really only need to be out on the roads right af

They're probably realistic, but I'm not sure they'd make a lot of sense for most places right off the bat. They really only need to be out on the roads right after / during a snow storm, which isn't 24/7. For some places in the midwest, this might even be once a week max for a few hours. A human will be a lot cheaper until the cost comes way down. They may make sense for areas that get a ton of snow, and have snow storms that last days, but I find it hard to believe the price will be cheaper than a human for a while.