I have two types of mates playing this game, the ones who like to play the game without any teammates and prefer to do things by themselves and others that like jumping on Vent and working as a group. The later group are having a blast, joking around helping with storymodes, WvW, questing... this game is far more social than other MMO's because it still rewards you for helping others no matter what level they are.
I feel sorry for those that aren't playing with a group because the enjoyment of the game is 10x better.
I'm saying this in the 'endgame' thread because we are all level 80 and still doing all those things I mentioned. We've also only done 1 dungeon so far and will wait until they have fixed the rewards/tokens and boss fight mechanics before we enter. PLenty to keep us busy til they do.