Completely understand. I've got a couple of trucks that I never plan on selling and if I did the price would be way north of what most would consider them "worth". Look at the truck I commented on, I'm not even sure I believe the advertised mileage (45,***). The mats are way over armor-all'd and look black to me which don't match the burgundy. The taillights are oxidized and tailgate band letters are all but faded. With that kind of mileage (and appears to be garaged if we're to trust the condition of the paint) I'd expect those things to be in much better shape with that low of miles. And I wouldn't expect the underside to have the surface rust it does.
If I'm considering paying $30k for that truck it'd definitely need to be closer to perfect than what is advertised. I love the GMT400 platform but that specific truck seems overpriced (at the very least) to me