THere is such a fundamental difference between games like WOW and AH. SOmebody wrote a psych paper on WOW, detailing the use of the jacob ladder effect. Something like when mice get pellets for doing a task. You get a new bit of armor, or a spell - and you level up and get more content. But the content is usually just more of the same, maybe some new tactical challenges thrown in.
The level of coordination needed is nowhere near what AH missions require. Not even close. The only reason you hear so many stories about guilds and teamwork is that compared to a halfway decent squadron, these are a bunch of ritilan pumped children. Getting people to focus and stay on mission is a massive PITA unless you get with a guild made up of people over 21, exclusively. 25 is better as the floor age.
Lining up spells and other buffs and then setting up your buttons for a perfectly timed set of cascading attacks in WOW gets old next to the rush that a perfectly timed kill coming out of the sun does. I played WOW early on, in the begining days, and made it to 40 and then quit. I played on a RPG server where nobody stayed in character and mob pulls and competing teams made the game silly.
The main arena, from what I understand, in AH, is full of HO and rammers. So you need to adjust tactics and just wait for distracted players to get kills. But there is so much more to the human element that every encounter is different. In WOW, the game pretty much is rinse and repeat after level 20 or so.
