Around $5 USD, I think.  

This is an absolutely amazing idea. As for the questions for what to sell, perhaps players could buy and sell house furniture at reasonable prices, and while people would have a good market off rares, it most likely wouldn't be the only thing being sold.  

The only problem with this is I think there needs to be a price cap for items that are still on sale. For example, someone shouldn't be able to sell one of the 2,500 Gralat horses for 4,000. Because some like 8 or 9 year old who doesn't know how to get to the stables might think that's the true price of the horse and buy it for that price. Later, that same player will come across the stables and see that the price of the horse was only 2,500. Now we have a younger player who's going to be running around the map yelling "ADMENS!!!!! I NEEEEEED YOR HLP PLEEEEEESE!!!!!!!!!!!! IIII WUZ SCAMEDDDDDD!!!!"  

Posted by RifRaff

The only problem with this is I think there needs to be a price cap for items that are still on sale. For example, someone shouldn't be able to sell one of the 2,500 Gralat horses for 4,000. Because some like 8 or 9 year old who doesn't know how to get to the stables might think that's the true price of the horse and buy it for that price. Later, that same player will come across the stables and see that the price of the horse was only 2,500. Now we have a younger player who's going to be running around the map yelling "ADMENS!!!!! I NEEEEEED YOR HLP PLEEEEEESE!!!!!!!!!!!! IIII WUZ SCAMEDDDDDD!!!!"

This seems like a necessary limitation, as some people will probably fall for it. If it's no longer sold and super rare, it's justifiable.  

Posted by RifRaff

The only problem with this is I think there needs to be a price cap for items that are still on sale. For example, someone shouldn't be able to sell one of the 2,500 Gralat horses for 4,000. Because some like 8 or 9 year old who doesn't know how to get to the stables might think that's the true price of the horse and buy it for that price. Later, that same player will come across the stables and see that the price of the horse was only 2,500. Now we have a younger player who's going to be running around the map yelling "ADMENS!!!!! I NEEEEEED YOR HLP PLEEEEEESE!!!!!!!!!!!! IIII WUZ SCAMEDDDDDD!!!!"

Maybe in item-view mode, the game will display either "Current store price: #Gralats", or "No longer available in stores". This lets players know if an item is in limited supply or not and also if they can find a better price in other stores.  

Posted by Midori

Maybe in item-view mode, the game will display either "Current store price: #Gralats", or "No longer available in stores". This lets players know if an item is in limited supply or not and also if they can find a better price in other stores.

I'm not sure if this is what you mean, but perhaps when a player is browsing for an item, a list of of prices for said item could appear, plus the store price, so the player can look for the best price.  

Posted by Midori

Maybe in item-view mode, the game will display either "Current store price: #Gralats", or "No longer available in stores". This lets players know if an item is in limited supply or not and also if they can find a better price in other stores.

That would work.