Used cars are holding their value because the auctions haven’t been running and people are walking away from newer leases. They typically do well in a recession.
Your mileage is great (edit) if you average 12K a year, but the models I’m seeing here at the same price have much higher miles, with one exception which is at $7,000.
Check eBay, Craigslist and KSL Classifieds to see what others have theirs posted for. Figure people will, in good faith, try and talk you down.