A guy walks into a bar

With a suitcase in each hand and orders a drink, carefully placing his suitcases on the bar. The barman notices that these suitcases have holes in the top so gets a little curious.
"What's in the suitcases" he asks the guy.
The guy sips his drink and looks slyly at the barman.
"Would you believe me if I told you it was a hamster that could play the piano?"
The barman bursts out laughing.
"Yeah right, sure."
"Bet you $50 I've got a hamster that can play the piano in here" he says.
"Sure" says he barman, "let's see him"
The guy opens up his suitcase and pulls out a little stool, and a tiny little grand piano and a hamster, placing them all on the bar. The hamster sits on the stool and sure enough begins playing the most beautiful piece of piano that the barman has ever heard. The hamster finishes his dramatic piece and the barman, astounded, hands over his $50.
"That was amazing! But what's in the other suitcase?"
The guy gives the barman that same sly look.
"Would you believe me if I told you it was a singing frog?" The guy asks.
"Now you're having me on!" The barman says. "I'll bet you $100 that I've got a singing frog in the other one" the guy says. The barman agrees so the guy opens up the suitcase and pulls out a frog and sits him next to the hamster. The hamster begins to play again and all of a sudden the frog begins to sing along with the most amazing operatic voice that the barman has ever heard. The barman, blown away, pays the guy the money. A guy at the end of the bar has been watching the whole display and approaches the man. "That's quite an amazing duo you have there. I'll pay you $1000 for that frog."
The guy agrees so the man pays him and walks away with the frog.
"What did you do that for?!" The barman asks. "You could have made millions with that frog!"
The guy gives the barman that same look. "Nah, the hamster is the real money maker, he's a ventriloquist too."