too many alts?

do you think we can have too many alts? I have 10 chars on the khadgar realm,4 ar 80's rest are somewhere in between. I have been levelling my mage and paladin recently as well,as i have found that the constant grind of daily randoms boring at moment,its all i seem to do. so to break that up i have been focusing on questing again..i have tried to go to different places as i haven't completed all quests in all areas.