Alt-ti-dus is a condition of a wow player gets after getting burned out with his/her current class. Every wow player has come down with this at one time or another, but there is a cure for it. Roll a class that can fill multiple rolls. So if you rolled a Mage back in the day but would like to try healing? Roll a Shaman. Rolled a sad Warlock and would like to try tanking? Paladin will may be up your ally. Started a Hunter named Leogus and already have a Rogue, Priest, and Warrior? Roll a Druid and do all four rolls!
The cure for having Alt-ti-dus is not to roll several characters anymore. The cure is the class that can do the trifecta (Tank, heals, and DPS) of rolls well.