I've done it again.
My main characters - My druid, warlock and warrior are all about as well-geared as I can get them without raiding, which I can't always do. My hunter is well-geared enough to farm and I don't have much interest in getting her beyond that. So, now I could be running dailys and getting epic flyers for all my toons.
Am I doing that? Am I heck. I rolled up another alt. I'm so weak!
And I LOVE ghost wolf. Can you say overpowered? 40% run speed increase?! What the heck was I doing messing around with travel form? Pshaw! Wolf is where it's at.
I'm currently running around with a big two-handed mace, using flametongue until I get windfury. I'm enhancement, and I think I'll be sticking to that because I already have a healer (druid) and ranged caster (warlock).
Will I get her to 70? I don't know yet. I should be starting a new job soon so my playtime will go right down, and I may lose interest partway through. My rogue is still languishing in the late 40s and has been for about two years now. We'll see!
I think I have the basics of the class down. Another reason for playing a shaman is that it's one class I had no idea about and I wanted to get to know at least a little. I love having the range of knowledge that having alts brings.
I'll probably come up with an RP background for her soon.

I love alt-ism and have to agree that having a few different classes under your belt makes you play better, and often also appreciate the actions of others.
I'm alting a Mage at 37, and a Druid at 9. And I'm sure my 70 warlock and paladin hate them both for the attention they are getting.