

I'll tell you about the best economy I have seen in MMORPG game. It's Wurm Online's economy (it's another fantasy simulation game where you don't just hack n slash all in your sight but you build community and it's a lot more complex than HnH and it's also made by guys from Sweeden mostly)
Wurm's currency is like this:
100 iron coins = 1 copper coin
100 copper = 1 silver
100 silver = 1 gold
and 1 silver = 1 €
Yes, all ingame money is bought for real money. People use this money to trade but the main way to spend it are homesteads and villages. They require monthly upkeep fee (I don't remember the rates but the bigger the claim the more you have to pay for it, also, homesteads, as they can only support one player are much cheaper than villages).
Now, when you pay that upkeep money ain't completly gone from the system. 30% of it just disapears, the rest is given to village NPC traders (only the smallest village don't have trader, all bigger options come with one or more) who sells and buys player crafted items (in Wurm all items are player made, like here). As long as trader has money it will buy any item you want to sell and will pay for it depending on it's QL and amount of same type items he already has (supply and demand system).
This way economy really works. Ingame coins value changes depending on how many particular items are on the market (talkin about player 2 player trade).
People are also allowed to sell coins they earn for real money. Coins purhased from other players are usualy cheaper (0.60-70€ / 1 silver).
To sum things up:
Coins have real value, there are graphs availble to anyone where you can see how many coins are currently in the system.
It isn't a must to buy those coins. Players still prefer to pay with items and services. There are also possibilites to work for someone, haul goods and resources for their village and get paid with coins (it's a common newbie money making way, then they can afford decent tools and start working on their skills).
What is the biggest advantage of this solution?
The game is making pretty good money and the developers don't have to work in some warehouse or wherenot, instead, they can focus all their efforts and time on developing the game and you can really see it, coz there are new updates comin out all the time.
Something similar could be done for HnH aswell only I can't come up with any good suggestion coz I'm a newbie and don't rly know game and community mechanics too well.
So... What you think about this economy solution?