fuck dalaran, it was laggy as fuck when it was live and iirc you couldn't even fucking fly in it during wotlk? Nah, Shattrah was the bomb - you could fly, it was nicely spread out, and horde and ally existed side by side. Plus the Aldor death elevator was great. The biggest reason for the city splits is performance, by keeping ally and horde seperate and then secondly seperating idlers and AHers/lowbies, you keep the performance better. In early cata, org was laggy as fuuuuck on high pop servers as everyone did everything there. Even now on some servers org gets super laggy a day or two before server maint, and Blizzard really has a hard-on for cross-zone servers to "combine" a bunch of servers as invisible as they can to users - I'm sure auction houses are next on that, low pop servers already sometimes combine org/sw/IF.
and yeah, kruegen, your big problem is raiding. I'm too old to listen to some McDonalds server tell me what to do for 20 hours a week or listen to the completely inane chatter that consists 90% of the word fag, dick, and American Inventor. Just like Cybsled, once you make LFR your "endgame" the game is a lot more fun and relaxing, and you get to do all the shit YOU want instead of being part of some faceless random team of incompetents who end up at 90% turnover within 3 months. It is totally weird reading about how getting rid of wow is somehow part of your mental wellness though...