When Armstrong finally threw in the towel over his doping I compared it to the scene in 'The Wizard of Oz' when the curtain is pulled back, and the wizard is revealed as a product of smoke and mirrors.
The moral of the story was that the protagonists were changed by the journey, and became what they admired through their trials. Millions got on their bikes because of Lance, and that didn't change because of his fall from grace. Germany went on the same journey through Ullrich, and Denmark through Riis.
I'm actually more concerned about Health and Safety. I expect the teams to game the system, but I don't want to see riders dying. The example of Tommy Simpson is interesting, he still has a heroic quality. There obviously has to be a system for looking after the health of the athletes, and we have to expect that the authorities allow TUE's.
Getting Wiggins to Paris in yellow struck me as an amazing achievement, mainly due to his highly-strung temperament. The most interesting dynamic was his relationship with Cavendish. Wiggins seem to fixate on compensating for Cav's lack of an Olympic medal, and that diverted his nerves. It also led to a lot of resentment of Sky, who took too much out of the 2012 Tour.