I use ebay to evaluate what I should list my stuff for. Generally I sell on ebay, so it makes sense to use what shoppers will see as comparables.
I’ll initially list for what I want for “nice” stuff, and if no one bids, drop it incrementally on followup listings until it sells, or it’s worth it for me to keep.
If I’m cleaning out old tack, it’s honestly worth it to me for it to just be gone. So I’ll list with no or low reserve. As long as I charge what actual shipping costs, everything else is bonus.
OP, if it’s an “in” brand, you might have good luck selling it for what it’s worth on ebay or with a high-end tack consignment service. For non-trendy brands, having it at a tack store for customers to actually see/sit in/evaluate quality tends to be the way to go, though the tack stores’ commissions can be hefty.