I would appreciate anyone with experience on the per hr. operating cost for the Toro 580D. I have just purchased my first new one and I am wondering how close my predicted cost come to reality. I am estimating the hourly cost at $70.00 for the machine and $25.00 for the operator. This is intended to cover all associated cost with owning, operating, insuring, maintaining, and replacement cost. Is this close to what some of you are experiencing in the real world. I hope that the cost is not more. Thanks for any input.