While I agree that free realms do have broader appeal, why does that have to be the all we get?
I pay to play WoW because to me it is worth it...or used to be anyway. The game has become..well..in all honesty a joke. I have been playing since the day it came out.
Sure, make games that are free to play so that you can draw in the 13 year olds. But that shouldn't stop game developers from making games, that are subscription based that do have the separation that a lot of more mature players want.