Sounds like a good deal to me.

Magician shows tricks of trade at magic shop: "When someone buys a trick, I show them how to do it,' said magician Larry Taylor, who opened the South Florida Magic Co. in Boynton Beach three years ago. 'People from 8 to 80 love magic. They know it's not voodoo. It's a fun thing"

Now you won't need to ask 'How did you do that?'