@enf0rcer perhaps we can continue the conversation about "resupply vouchers" in this thread, as the idea seems to me a subset of the broader concept of barter and exchange of goods and services.
I left the concept of "resupply vouchers" purposely vague so it could be adjusted or tweaked so as not to create unbalance. I'd like to see the NPC's have greater utility in the game. Alot of them appear to be business people to one degree or another. So imv they should have diverse ways to interact with players. As dealers or smugglers, trades people, traders generally, having them dispense only gold seems limiting and boring to me. Having a diversity of interaction makes interacting and dealing with them much more interesting. We want ideally to have a diversity of quest types and missions. We may have different needs at different times. It all doesn't boil down to gold. Thus, barter and exchange.
What if... a "resupply voucher" was just one of many different kinds of favour or benefit, or reward, or payment, one could receive for services rendered.
The "resupply voucher" could have its own variety of types also. They could be limited by expiry limits, to just one type of supply, or multiple, to quantity of supply.
They should certainly not be collectable by players. That would render them no different than paying gold for them. So a voucher should be a rare, precious perk for players; not something you find regularly or are offered regularly. Certainly not something you can hoard.
Ideally, it should be something you hold on to to use when you REALLY need it.
Solo sloopers would really benefit from this as they resupply individually, which takes alot more time to do alone.
But of course all players can benefit. I think crew's with more than one player should be limited to one resupply voucher to one crew. Also, one voucher to be saved in one's inventory unused, at one time.
I don't think these resupply vouchers should be free... unless they are VERY RARELY free.
I think resupply vouchers should be earned, and NPC's should be offered only randomly and not all the time. Maybe as part of some particularly grueling quest, and only AFTER the conditions of the quest are either complete or certain conditions of the quest met.
They could also be incorporated into a barter mechanic. So occasionally an NPC asks if you would rather trade your loot for a "resupply voucher". But the supply might not be worth what you are trading in terms of loot. What he's offering may not be what you want or the quantity you think it's worth.
It would be great too if you could make offers as a player.
So you approach an NPC and he asks; "Buying or Selling?", so you click Selling. The NPC says, "What you have to sell?", with a list of items. You choose "Gunpowder Kegs". They say, "How many you want to sell?", with numbers 1, 2, 3, 4 or more. You click 4 or more. He says, Okay give me 4 kegs and I'll give you 30 bananas and 30 wood and 30 canon balls.
That's just an example, but you get the idea. There could be countless variations depending on what they offer and what you offer, and you can always turn down the offer.
I see an almost infinite number of potential variables for trade and exchange that doesn't involve gold alone.
But that doesn't mean it won't involve gold. But the predominant focus of these NPC's will be barter and exchange for both goods and services.