[Bolix]

Said it before, but I loved luclin raiding.
Even though I had to help wasters camp VT shards 300 times!

One problem with too many expansions is that it dilutes the player pool levellling in zones. With more zones to level in, people get more spread out, and that takes away from the 'community' feel of the game (i.e. you feel it isn't just you against the game, there are others around you).

Bazaar, mounts, cats, UI. I don't have any huge preference on these things (clarification, I don't want to mount a cat). I wouldn't die in a ditch over any of these things, and if lots of people wanted, or didn't want them, wouldn't bother me too much.