How much is a WOW account worth?

Mannoroth PVP , Level 80 Paladin Dalaran, Level 80 shaman dalaran, level 80 rouge ice crown, level 72 warlock iron forge, level 71 hunter borean tundra, level 69 death knight iron forge, level 61 druid hellfire peninsula, level 61 priest hellfire peninsula, level 45 warrior iron forge.