You found the thing. Now work out whether the price is fair, using numbers you can get without paying for sold history.
3 postseBay has no price history chart, and no tool can show you prices from before tracking started. Here's why that's structural and not an oversight.
10 min read · Price research, How eBay works, Tools
Sell-through rate is sold listings divided by active listings on one eBay search. Both counts are free to read, and there's no price anywhere in the answer.
10 min read · Reselling, Price research, Deal hunting, Tools
Sold prices tell you what buyers paid. Asking prices tell you what sellers hope for. Here's how to check eBay sold comps free, and where they fall short.
8 min read · Price research, Deal hunting, Reselling