Well now,,let me tell you the reason,,cause I can afford 4 or 500 dollars for a new top notch chain saw,,,,But,,can't afford 16,000 dollars for a non paying tractor,[would have to be making money off it,to spend that much],even though it be top notch too,will settle for what I can afford in other words,,got over 300 hrs of work in just a little over 2 years ,on my 254 nortrac now,,ain't had anything go wrong with it in those two years,,use a 5ft hog,5 ft tiller,6 ft blade,,with power to spare,,it will climb a mountain backwards,,,it cost me 8,000 dollars with two year parts and labor warrenty,,still the same price,,,sorry you asked right? Go over on the chinese board section here,,maybe we can sell you on one too,,no need spending more than you need to,,,heck I hear john deere has started putting chinese motors in some of theirs? Probably true,,john deere generally knows which way the wind is blowing and the chinese do make good motors,,,thingy