The Magic Show in its original production, was a fluke. No one had any great expectations for a show with no star opening at the end of May and at the Cort which is so far out of the mainstream as to be a road house.
Critics dismissed the show, but raved about the illusions.
However there was a clever televison commercial and word-of-mouth was good ("Good for the kids and you won't be bored") and it went to capacity and ran 5 years.
One of the reasons it worked well on stage is that the illusions happened right in front of you. On film, tv or dvd the immediacy is taken away.
Anyone who worked on The Magic Show, on stage or off, had to sign an agreement not to reveal how the illusions were done and not to perform them on their own.
Grover Dale staged the show and it was well done.
"If my life weren't funny, it would just be true. And that would be unacceptable."
--Carrie Fisher