The great news for the casual player who can't get involved very much with groups is that - one you hit level 80 - Khitai has a mass of great solo PvE content, including repeatable solo dungeons. There is an intricate storyline involving the various factions and even how they interact (for instance as a member of one faction you will be questing to right some wrongs, then when later as a member of the opposing faction you are the one causing the problem) Faction questing will (eventually) get you great epic armor and weapons, but to complete you collection you will eventually have to join in and do the group dungeons a few (ha!) time. This will also give you more of the complex Khitai story arc - some of your solo quests will only be resolved in the various group dungeons and raids.

As a premium player, you will also get the Dragon-Spine expansion, which again has various absorbing solo PvE storylines.

The recent "Achievement" system has also provided the solo player with lots more to do - either with a new toon or with an old toon revisiting old haunts.