FWIW, there's a community access channel that runs a "Classified Live" show daily where you can call in and place FREE ads here. Told y'all it's Mayberry!
I can top that. Here, they run them on the radio once a day. Not at all unusual to have an ad that says "Mossberg 500 shotgun. Will take $100.00 or trade for livestock."
One of my friends visiting came to find me to tell me the radio station just announced a missing cow. Um, hello, yes? How else are you going to find a cow? This, apparently, is not done everywhere. How they find cows, I do not know. Maybe a classified newspaper ad?
Anyway, if you only want 500-600 bucks for it, don't put a lot of money into getting rid of it. Park it somewhere high school kids are likely to see it.