I don't know how many I see that are F2P, but I can say that for a game that's been out this long, I see more people leveling characters in every single leveling zone than I've seen in any other MMO I've played. And there are often multiple instances running. With that many people leveling new characters or that many new players, I'd say the game is very healthy, and not overly end-game oriented. That works just fine for my casual playstyle.