Both Kopp and Joana are loaded with collection quests. Hell, one of the first quests in Hellfire is to gather 8 ore and 8 wood. That means picking up 80 pieces off the ground for a 5-boxer. No thanks!

But now that I think about it, instancing and questing are probably on par with each other, if you figure in travel time, dealing with gankers, etc. It just seems to take longer in an instance, so monotonous in there.