I like to be self sufficient.

Be able to run an instance whenever I feel like it, and if I feel like it... ditch the instance just before the first or last boss.

I also really like blowing content, be it a mob or another player, in a second or so. Or being able to do group quests that others need to LFG for.

But I take frequent breaks, not logging in much over the summer. We've finished our Cherry/Fruit season (6 weeks) and had a couple weeks before corn started. I only logged in 3 times in two weeks, but maybe an hour each time; more of the transmutes. Similarly, I had three or four 2-3 week breaks during the year, and will probably do the same this fall/winter/spring too.