I have to say that I'm enjoying the game now more than ever. There are a lot of things that keep me occupied, "ez-mode" notwithstanding. I think it works, and I don't feel like I have to make such a huge commitment to the game just to feel like I've accomplished anything. Patch 3.1 looks like it's shaping up to be an awesome content patch, and my guild is excited to take a crack at Ulduar and see how far and how fast we can go.
That said, not everything's perfect. I haven't played Arenas in quite a while, and apparently a lot of people haven't been queuing up, either. I do enjoy all the Battlegrounds, and I definitely try to get my daily (or several times daily) dose of Wintergrasp. But Wintergrasp still lags like a poor version of a Ray Harryhausen movie. As much as Blizzard has gotten a lot of things right in Wrath, I'm sure a lot of people feel that they've gotten things wrong, too. In fact, some of the things I like might be the exact same things some people don't like.
So far, what do you think is WoW's biggest mistake? Do you think opening up raiding to more people was bad? I know a lot of you will yell 'Arenas' at the top of their cyberspatial lungs. Were Death Knights a mistake? Frankly, I can't think of anything truly egregious -- I'm having a lot of fun like I mentioned -- but maybe some of you feel otherwise. Where has Blizzard taken a misstep? What direction do you think is wrong or would be wrong for the game?