I browse FB Marketplace occasionally, and yeah some of the prices are pretty farfetched for what's offered.
Went to a swap meet a couple years ago, and spotted a '59 3200 fender emblem on a guy's table. Figured he'd say like $10-15 since it had some pitting and was curved, basically a wall hanger, but then he dropped the $80 price tag on me and claimed it was "rare, rare, rare, rare!" He tried a few times to sucker me into it, but needless to say I passed.