As i've heard in the interview, the devs team planning to have the demand on NXC by the gamers. They will need NXC's to buy some stuff in the game, and because of that, the price will grow. The Devs will also regulate the prices at shop, to control the economy.. That's gonna be when game is released.
Ahh. So kind of like how Diablo and forgot the name another online MMORPG were. THeir in-game economy was linked to real $$ that people traded for in-game credits (eventually they put the stop to it) and stuff was great!. Since this includes it form the start, this might be an actually good thing for this game. As long as there are enough interesting and wanted items to buy and people ill want, this'll go high after the beta. 3 more weeks to load up cheap I guess. Worth the risk.