I too can't justify the cost of electric wipers. My air wipers work just OK most of the time. But like others, we don't drive in the rain much. I would still like to rebuild the motors, but not at $75 a crack.
Does anyone have the O-ring number for the rebuild kit? Anything else in the kit that has to be replaced?
In cars I use Rain-X and it works great. I put in on the bus windshields, but they are so vertical that the Rain-X does not work all that well.
BTW, I love the air wipers when I go to clean the windshield - can move them around