I have noticed that getting prestige is essentially useless. Why would I want to do prestige missions if I can't redeem it for anything? I think that prestige should be redeemable for various goods and services.
Suggestions for prestige redeeming:
Crowns
Mist tanks
CE
UV tickets
Usage in place of energy when crafting, exploring, purchasing from supply depot, etc.
Exclusive features (new bosses, new items, etc.) that can be purchased for prestige
Weapon and armor buffs (gain extra damage/defense in exchange for expending prestige)
Just some suggestions.
If you can give prestige in exchange for crowns/energy, then it will be the dumbest thing ever. We need to spend lots of energy and crowns to get prestige in the first place, only to get the same reward?
Last 2 options sound better.