Increase character limit

Hi.
I'd like to see a character limit increase, going up from 10 characters / realm to maybe 15?
I have a full list of level 80 characters with good gear, and sometimes i feel like i want to experience the low level game again, i'm an altoholic and don't think it's worth deleting a full epic geared 80 character to create a new character.

Everyone has their own opinions about this ofcourse, but i bet i'm not alone concerning this.
Thanks.

I guess it is not even possible for a client limitation but... what about a second account? ( sure, for icecrown you need to spend 10 euro if you used to skip que on main account)

There're a "link account" on Frostwolf server, a way to increase character limit. Maybe to Icecrown would be good.