As someone who enjoys DND, I agree. Just a single set is all that is needed. Maybe 2 if you want an extra set to let someone new who doesn't have any to play but that is pushing it because you can just share your only set. If you lose one just get a single replacement. You don't even need the mini figures because you can just use anything as a place holder like a boardgame piece from monopoly. You can just draw your own setting maps too.