There's something deeply human in the whole 'awkward dance'. Not everyone is born a great dancer, but this doesn't mean that dancing is a stupid and pointless activity.
People have been trading with one another (and often tricking or getting tricked in the process) for millennia. The 'Grand Bazaar' you evoke stands for something timeless — a promise of wealth earned with wit. In a twisted way, our American love for capitalism and these sleazy dealerships are chasing the same ancient dream.
May as well be a part of it.