If you're talking about putting a price on imparting my sword skills, I'm afraid there's no upper limit to how much they're worth. It's merely a matter of being practical.

[ Look, if Kaito's not being serious, Kojirou's not going to be serious either. And if you ask him, his swordplay is priceless. Hey, it comes with a recommendation from King Arthur herself, how could it not be? ]