Originally Posted by RagnarokCzD
I really hope value of this item will be raised so we are tempted to sell it ...
And i really hope in some later game there will be some really cool item we could purcase only for that coin, so we can regret we sold it. laugh

There’s some hints the group may end up going to Avernus. I wonder if some of your party members get killed or sell their soul to Raphael, you will be able to reclaim them using the soul coin?

They may be worth holding onto for the finale. Just my theory.