Excellent post, the timeline is great for us late-comers.

For me it just came down to viable classes I hadn't played yet. I have a 70 warlock, 70 mage, 70 hunter, 67 warrior, and I didn't want to mess with a multi class combination for my first run at it, so assuming I want a res, and to not hate my life, it's down to shaman, or priest, and the last two toons I'd leveled were clothies, so Shaman sounded like a winner. Plus pewpew Chain Lighting + NS Lightning Bolt + Earth Shock x 3 is going to be fun.