I've been hunting for a vintage Nikon F3 camera lately and my budget is strictly under 300 bucks but eBay prices are all over the place. So I was thinking there has to be a way to track this stuff like people do with Amazon.

My logic was that Terapeak would be the answer since it's built-in but it feels more like a tool for sellers and is kinda clunky. I also checked out PriceBefore but I'm not sure if it actually tracks 'Sold' prices or just active listings. It doesnt help if people are just overpricing their stuff. Is there anything that gives a clean graph of actual sold history? Just trying to see if I'm actually getting a deal...