Euhm, I think runescape is one of the most profitable mmorpg's out there though. Their game works on Java by the way, pretty cheap for what they get in return if you ask me.
There might be single items costing more then a monthly fee, but MMO's like that don't have 1-2million members paying €7.5 a month+ lot's of cash through ads. I can only name one MMO that I'm pretty sure of that makes more money then runescape and that is WoW. Feel free the tell me more MMO's that make more cash then Jagex with one game. I'm not saying they don't exist, but I just don't know any besides WoW.
I'm just saying that it would be dumb for Jagex to release an MMO that has graphics on par with WoW(I know WoW has crappy graphics as well, but the gap between rs and WoW is enormous) because the competition would be a lot fiercer then.
