How many is too much?

As my warlock inches closer to 78, it occurs to me that six characters at level 80 might be too much.

No, really.

I was dreaming about getting soul shards off of target dummies, and how I'd get duds that wouldn't go in my soul pouch because they didn't have actual souls, or they were too low of a level...or even too high of a level!

Top that off with wondering when I'll ever get a chance to dps anyway, when my "main" is a healer...so what's the point in having so many characters at max level?

Oh well, I'm doing it anyway. I've got the heirloom shoulders and chest to boost me on my way, so I might as well see how fast I can go. Even if she does sit at 80 and collect dust.