I got my key on Friday, so no big deal to me. Seems odd that they didn't just rush someone in over the weekend (they knew the sale was coming and would be on call, I'd hope) to spit out a few hundred/thousand more keys. But, I don't know how their system works, so whatever. Sucks for the people who didn't get a key.
As for the game itself, is playing a mage worth it? The one gameplay video I saw for a fire mage looks like they just replaced an arrow with a yellow dot and called it a fireball. I tend to play spell casters for the particle effects, so was a bit let down with the video.