Ahh.. The old price vs value conundrum.
As a 1994 truck which was gifted to a non-consumerist (frugalist?) by her father, it has more value attached to it than a price tag, at least I think that's how most of us subconsciously read it. Equally, Piper herself has listed more "value" that is derived from the car (e.g., "With a camper shell I could live in it.") than a price projection. So I think subconsciously everyone has somehow tried communicating in a way that respects her thinking and in a language that reaches her in the best way.
> "However, what is the truck worth? Maybe not much,"
I would assume that's valid considering the universal law of car's age + depreciation... But USA-car-a-nomics (car's street cred, perceived value, old school muscle car...etc...) is Arabic to me, so I will refrain from poking my nose there.
Well, that's my reading anyway.