FB player count

[i8bit]

Before you jump to any conclusions, let me say I have nothing against classic server, it is well-developed.

But my question is, why is the player count so much greater on Classic than a server like Delteria? Delteria offers more gameplay and has more of that MMO feel with the combat and leveling up and what not.

I realize Classic is 1000+ players cause of the merge with IOS server, BUT even if you take the iphone players out, the FB players would still dominate in player count and I don't understand why