Naxxramas

[Jarulf]

4) Hardcore Limited - Time.  These players are hardcore.  Or would be, at any rate: they want to do great things and at least have something like the achievement drive of raiders.  Their problem is that they rarely have more than an hour straight to sit at a computer.  If they had the time, they'd raid.  Or 20-man.  Or 5-man.  They'd do more than they are doing, but they just can't.

You don't hear a lot from these guys on the forums (they don't have much time for those, either).  In general, they just want something they can work at in bits and pieces in the short snatches of time they have.  Even five-man instances often consume more time than these people have available; they want something you can work on for an hour here, an hour there, which ends up in something worth achieving. 

Yay, I am #4!!!

I agree on all aspects of above, including even 5-man simply taking to much time, at times.

To add, what I would like more of is non instance content that you still might group for. There are several such things including quests. Unfortunately, the rwards are typically such that it is not really worth it and no one wants to do it except for completion sake.