EliteFTS Squat Bar being offered by Danny Einstein (Facebook Marketplace) for $275. Retail is $445.
He also had an EliteFTS American Cambered Bar for sale for $200, but it sold. Retail is $315.
I have not trained with either one and am not too anxious to start, but like to maintain a pulse on market prices. 60-65% of retail is pretty fair for Specialty Bars.
Olympic plates, dumbbells and kettlebells seem to have the highest used value. The price goes progressively lower for corner case items.