What Dan said, vehicles that have been sitting a long time have a habit of attracting mice ( my experiences ), take a look under the hood at the plug wires and other wiring they sometime will chew on the insulation or build nests under the hood or in the vehicle.
I have a 2009 Chevy cargo van, I haven't driven since 2011 but my son who lives with me uses it occasionally, it also has around 40k mileage on it. 1 battery replaced, lack of regular use, a lot of the electronics still draw current, 1 rotor, left front developed a rust area, again lack of regular use.
I get an oil change and grease job on mine once a year, even though it hasn't exceeded 3k miles a year since I stopped driving, your vehicles owner may not have done that?
The value? without actually seeing and driving it? No real idea, it could be trash or treasure?