True as such. But storywise it would seem weird to leave this hanging. That's one reason why I'm already irrationally overinvested, I notice, in my theory that it'll get taken care of pretty much on the side by finding out the true culprit and thus cancelling the debt through the Wizengamot or, failing that, possibly through Draco.

There are other options, of course. There have been good points about Dumbledore now having an interest to Make Money Fast for Harry, and about possible other people who might be willing to bankroll a business venture for the newly brightened legend. And, again storywise, I can see handling the "leave it hanging" option in a decent manner as well, if there's some closure about the relations of houses Potter and Malfoy (presumably with Lucius dead or imprisoned and stripped of his status).