Because it's the best way to travel and to get deeply in a new culture. When someone hosts you and gifts you by showing and explaining his culture, his way of life... that's true discovery. You won't find any travel guide and tourists info that can level up to Couchsurfing.

Movies : Clint Eastwood movies (actor&realisation), Constantine, Boyhood, Limitless, The Town, The Hobbit & The lord of the ring trilogies, Happiness Therapy, Hot Shots, and so many others... Music : rock, rock'n'roll, rockabilly, country, blues, Hardcore, etc... Books : Simon Bisley, Hellspawn, Deadpool, but also Paolo Coelho, Pierre Jovanovic, etc...