Well, it matters quite a bit.
Sounds like you're doing Prophet or Burn.
I've been thinking about the same thing. How to end prophet. My solution so far is, DO MORE MAGIC:
Perform Prophet. Show the $100's (or $10's, you cheap sob). Explain that it's just an illusion. Take one of the $100's, pocket the others, and (using the Klause switch) change the $100 to a blank sheet of paper. Give the spectator the blank paper and tell him/her when they imagine hard enough, it will turn back into a $100 for them. Let them keep it.
Or you could just do Prophet, then run off screaming: "I'm freakin' rich b!#@&es! I can turn ones into hundreds! F-you, high school! I'm off to the bank! Bring me more ones! And hot women! Ones and hotties! Bring me ALLLLL the ONES and HOTTIES!"
But that takes a certain personality to pull off. But it's more interesting than "Thanks for watching."