Oh boy.
Mind you, the official presentation says they "Broke though" 600k, beating FFXI's peak. It didn't say by how much.
edit: Lol, Pandastirfry beat me to it.
You forgot "for those that spend several tens of hours a week grinding", which represent a vast minority in the MMORPG user base and are pretty much inconsequential in the grand scheme of things. There's tons of people that still didn't get a single job to 50, let alone running out of content.
