Well, I didn't exactly buy the Korg because of the broken button ... from what I'm told, the Yamaha has a much better build than the Korg and the button costs less than $50 to fix...

If I could have afforded to wait, I would have waited for the T3. If they plan to change all the drums on the T3, which I heard from a reliable source that they will, then it has a great chance of being a better pick than the Korg. I couldn't afford to wait half a year though...