How can I persist XP and gold when my players change between games?
I've found that Descent is really made for one-off games, and not for campaigning.  As much as anyone's tried to tack it on.
If every game is a new game, and everyone always starts again at zero, then this problem just disappears entirely.
For campaign-style play, we just stick to classic pen-and-paper RPGs.  Works well.