What is this - Ebay ?
Boaters seem to have a love for things that are traditional or that harken back to some gilded time, but they have one basic requirement for the loved object - the thing's gotta work.
So I expect that outside of a museum or collector, there wouldn't be much interest in the Loran, sorry. Re an older GPS - I used to do some marine repairs back when a Magellan GPS was the size of an army walkie-talkie and cost $5000. Today's GPS units are several generations more advanced, and more reliable, so again, I don't think an older GPS would have much value beyond nostalgia.
Please don't just throw electronics in the garbage; most electronics contain recoverable metals and can leach toxins when in a landfill. Please try to get them recycled (if your town has recycling) or find someone who can still use it if it works, or a kid who might be able to pull some salvageable bits out of it. Thanks.