Per Urban Dictionary Altitis – The mental disease of making too many alts. One with altitis can’t just play one character, he/she has a need or desire to play many.

To take this definition anyone whom has more that 1 character has altitis. The more alts one has the more server the disease. Case in point I was at one time leveling 6 toons. Hunter, rogue, warlock, druid, paladin and mage. None of them at the time 70. I would say at that time I had a server case of altitis. My man Dax may need to see a doctor. I just looked and he has *cough* 11 toons on 3 different servers. 7 of them on Kael’thas. BBB I would say does not have a case of altitis. From my knowledge he has 2 level 70s and I think both have epic flight so he is now free to level a warlock. These are just a few examples, I could go on and on. I think the line between an alt and having altitis is the epic flying mount/skill.  I say that once you hit 70 then grind the 5500g for the epic flying mount (5000g for skill then 500g for mount) the toon you start playing is an alt. If you start playing another toon (or group of toons) before this you then are starting down the spiral path of Altitis.