A couple things come to mind:
1) Demand: Demand seems to be higher for bullion than 90% coins. You pay less on the front end, and get less back at the back end.
2) Wear. A lot of 90% coins were circulated and thus suffer from wear. I know some places will weigh the coins before buying instead of paying a set value for face because of this.
1) Demand: Demand seems to be higher for bullion than 90% coins. You pay less on the front end, and get less back at the back end.
2) Wear. A lot of 90% coins were circulated and thus suffer from wear. I know some places will weigh the coins before buying instead of paying a set value for face because of this.


















