Right now I'm using 2 craftsman tractors for my buisness. They are not commercial but have been working great. I use them to cut and tow our trailer around to my customers. Next year I will have a trailer with a truck and the tractors will go on the trailer because I will be driving instead of taking the tractors. Because of this, we will be obtaining MANY more customers. I was wondering if these machines would die because were planning on getting many more customers than we have right now, being that they are consumer tractors not commercial. The newer one is a 15 HP kohler 1996 which runs great and the other is a 12.5 HP briggs which I'm working on cuz the ignition got fried. If these won't last, I will have to buy zero turns. Im pretty much ready with all my other equipment, all my blowers are commercial and a toro walk behind. Please let me know, thanks .