How do you use it? The neighbor owns a landscaping and snow removal business. He could theoretically keep his running to 200k with enough money, but they run them really hard so he rotates his trucks out regularly.
Driving it on the highway 20-50k a year is different than tossing trees in the back, running blades on the front, and pulling a trailer full of equipment behind it non-stop for months. One mode is transportation and requires maintenance like oil and tires. One mode is working which requires extra maintenance like joints, transmission fluid changes, body work, and lots of new brake pads.