That is an easy question!
🙄
Yes, you could get at least $500 with ease. But you do not have to trust my
guess for an answer.
You should check Amazon and eBay for new versus used prices! Historically Macs have had great resale values. The release of a new model can cause a moderate drop in price, unless it doesn't.
😉 That was the case with the 2012 minis. Their used prices rose after the release of the 2014 mini. Even now, any clean 2012 can sell for more than 75% of the original retail price and it is not uncommon to see certain models sell for more than 110%.