Tango Show in San Telmo... authentic?

Seeing as how this was my second time in the city of Tango and having not seen a Tango Show, we decided to head out Friday night with our classes and that damn thesis behind us. We didn't want to spend too much money, but still wanted a good show. We found one near our hostel that was relatively cheap and was described as authentic. We arrived not knowing what to expect. We sat down and enjoyed a beer while the man with the toupee introduced the band, including Rudolfo the grimacing accordion player (whom Laura would come to love). The first dance was lovely and we got to try our luck. They took our picture and wanted an absorbent amount of money for the copy, however the picture of me dancing was way too creepy to pass up. I am sending it home with my parents to have it scanned so that I can add it for all of your enjoyment. The night started out like most other dancing shows that I have been to, then it got weird. There was more singing than dancing, we didn't realize Tango started as a way for immigrants and poor people to make their own culture. We also didn't know that we had stumbled into a Mafia hang out.
Our waiter was straight out of a movie, bald with a bow tie and overly friendly, but it truly started with the great (but a little cheesy) suits.
Then a guy with a little too much grease in his hair wearing a black on black on black tuxedo, singing his tango songs of Buenos Aires.

Then came a little more dancing, and few more 'locals' coming to enjoy the show. At one point a guy shushed some people for making noise during a song and I thought he was going to show the guy how to be quiet 'out back'. It continued with one over dramatic singer after another, and each new singer would be kissed on the cheeks by every 'suit' in the place.
There was the funny face guy, who never moved his feet. And after he was done singing, he went for the food before acceptin a kiss from his wife, if that isn't Mafia I don't know what is. Then a guy with a scarf, who sang seated with his eyes closed as if he was just singing to the accordion player, priceless. After quite a few beers, and even more singers we headed for the Internet to see if our padres where on their way. They are scheduled to arrive in the morning!