Originally Posted by New2School
Going to...tires are trash...gonna...
Most heavy-truck tires are a major investment.
Some sellers keep a set of 'stand-up' tires in case they want to sell the rig.
The seller mounts the beaters while keeping the serviceable to mount on the next rig.
Every buyer adjusts the bid to compensate for a set of six or ten new tires.
Of course, heavy-truck use is individualized... a set of street tires is inappropriate for mud, gravel, or rough tracks to remote mountain lakes and isolated Baja beaches.
Accordingly, tires tend to get swapped, moreso prior to selling the rig.
Those stand-ups are also useful for storage trailers to give the delusion of a non-permanent structure to reduce real-estate taxes.
Although... some might argue the reduction in property values from a rancid reeking paint-peeling junk trailer reduces the tax burden automatically, perhaps a separate subject for another time.