I've got one. When I started many years ago, it was my first like.. absolute main, and it still is!
But that's enough, there's only as many char slots as there are classes. I don't wanna fill up several slots with the same class. Pointless.
A friend of mine was considering making an alt of his main, the same class that is. Didn't take guildies etc long to convince him not to do so.