Quote fromIt doesnt matter what currency will be in game,because those trading sites wont sell money but ready items sets ect.And players will buy it because they want to be uber player in game in short time.Like it does in all mmorpg games.And in diablo 2 aswell.Trading items will always be,and theres nothing developers can do about it.
I think you're referring to actual sites where you pay for items with real money, the original post from my understanding is referring to trading sites where you trade for items with virtual forum gold (aka JSP, there I said it lol). Diablo 3 is going to have features that will make those trading for forum gold websites obsolete. Which is awesome imo, nothing against those websites but if it can all be done ingame to begin with then that's unreal. I can't wait for the d3 trading/economy.
The websites you're talking about where ppl buy with real money are probably going to still be around, but only idiots pay for items with real money to begin with lol so if they want to then let them.