If you are interested in Magic and you have a chance to travel to Cincinnati, be sure to check out Haines House of Cards. It and Brewe's Magic on Harrison Avenue are two of the best magic shoppes in the world.
Don't let the unassuming exterior fool you. Haines has a great selection of magic props and gimmicks as well as one of the best selection of in stocl Magic Books this reviewer has ever seen.
I suspect they have an inside connection to the US Playing Card company that is down the road, because the selection of specialty cards based in the Bicycle and other USPC brands is so large.
The staff is also willing to demonstrate just about any trick they have in stock, which makes it a great place to bring your kids.
Pros: Great for Kids
Cons: Hard to Find