Duty Cycle
If you don't know what is...look it up
Basically...normal usage will have most anything do...while a 'work' or a 'HD' usage will require much more stout everything (frame, suspension, tires, wheels, drive train, etc, etc, etc) and why so many won't buy next higher class over a 'half ton' because of their main concern: "ride quality", of which higher class trucks will NOT have as good a ride quality
A lower/lowest class pickup will NOT last long with it's lower Duty Cycle design. There is a fake half ton that is almost a 3/4 ton and is offered in very, very small numbers for those who really should have a higher class pickup, but insist on a 'half ton'...