I agree with what a number of people here have already said. If you want to become as famous as Blaine, you need a different angle than he used. Coming up with that right angle is how you earn your fame. Nobody here can tell exactly how to do that (or they'd probably do themselves).
I think one of the reasons that Blaine hit it big on his first special is that people became bored with watching stage magic on TV. After all, technology has become so advanced, that audiences probably think magicians can do about anything in a controlled environment. Plus, no matter how many times a magicians say they aren't using camera tricks, many people still think they do.
By taking the magic to the streets, the home audience mistakenly thinks that there can be no camera tricks. They don't realize the power of creative editing.
When people get tired of what Blaine has to offer, eventually somebody else will come up with a "fresh" idea, and grab the limelight.