Oh, Jack would regularly wish for the goblins to come take people away just to get another encounter with Jareth.

Exactly! I love Donna. And I love that she actually turned the Doctor down on his exciting offer of an eight-hour plane-or-whatever ride in favor of just relaxing and enjoying herself. I wonder how many companions have secretly wanted to just take a day off but couldn't quite manage to tell the Doctor no. But Donna can!