How many alts do you have?

[Selene]

Just something I've been wondering about, do most people play this game with several alts? I've been told to just focus on one class (I have 4 different characters, the highest is level 30), but can't resist the itch and am wondering if I am spreading myself too thin.

How do you all play? Just curious about whether many people play only one character and nothing else.