My only rationale for getting an 800 is for food plot work, basically using it as a tractor, not just for riding around. I know a 400 would be plenty big enough for that. I'm thinking more along the lines of loading up a set of disc's, drag harrow's, dragging out logs etc without getting boggged down. The extra ground clearance is a plus as it can get wet and muddy in places here in Central Fla when you get off road.