For 1/10 oz. American Eagle retail price v. buy back price:
https://www.providentmetals.com/2023-american-eagle-1-10-oz-gold-coin.html
( I have bought silver from here. I like “junk” silver)
You pay a huge % premium over spot when buying in smaller sizes. About 30% for the 1/10 ounce size. But a small fraction of that, around 5% premium, for a 1 ounce size.
If my calculation is right, the buy back price is 31% less than the retail price. Ouch !!