Why can't a player delete his own city if he no longer wants to play using his current city layout? It takes quite a bit of player time to figure out how to layout your city and you don't figure this out until you have used up all the spaces allotted for building. A player may want to use a different tactic in a city layout depending on what that player wants to achieve in the game. Some players just stop playing and their city just sits there doing nothing but taking up space and resources. Or at least allow the FP mage have the ability to delete the city if requested by the player.