The first, honest answer to this question is simple: envy!
Enviously, countless times I have seen documentaries with unlikely ladies and gentlemen cavorting about the world, swathed in tunics covered with colourful logos as if they were Formula One race cars. I leave it to others to judge how authentic these adventure trips – complete with a film troupe – might be. But a sponsor does give an idea visibility. It transforms a journey into an event, and an account into a story.
Since I am presumptuous enough to think that my journey will be an unquestionably original challenge, I wanted to add this additional “challenge within the challenge”.