The bed of my truck is lined with rust and chipped paint.
I haul gravel and firewood in it. I stand on its roof to hang my Xmas lights. I lower the tailgate and use it as a work bench. After a successful hunting trip I skin and cut up a deer in the back.
If I get a dent in the body I just pound it back out with a hammer, a rock, or any other handy object.
One of my rear-view mirrors is held on with duct tape.
The headliner is peeling off of the bottom of the roof, so I hold it up by sticking toothpicks thru the little tiny holes in the the liner and up into the foam that the liner used to be stuck to.
It used to have carpet on the floor. I cut the carpet out with an exacto knife so that I can just clean mud off of the bare metal floor with a garden hose.
It is a 3/4 ton, but right now I have it loaded with almost a full cord of green oak firewood that I cut yesterday. There has to be at least 3,000 pounds in the back. The tires look a bit "squished" and its sitting pretty low on the springs, but it went down the road just fine.
Bedliner? No thanks, I'll pass.