I don't know about you guys but I've never had a mower flat out die on me from wear. I'll hit a root and bend the shaft. I'll watch the mower deck rot out. It will get stolen. It will fall out the back of my truck because my brother is a moron. Ect... I've been buying and continue to buy newer model used mowers from pawn shops. Usually $40-$60 for a really nice machine. I almost feel like I could run non detergent 30 weight for infinite intervals because something will happen before it wears out. How bout' you guys.