Yes - Genoa's narrow gauge, funiculars, etc, are great. But I needed an actual physical map of the system - including the buses - so as to find my way round and plan outings. Getting around the city - which is quite large - without efficient use of buses didn't seem an option, especially for anyone finding walking long distances in a very hilly city difficult. (I was there to visit the city itself, not just be a transport nerd - in that case I might not have been so interested in the buses.) I think there are more than 100 bus routes in the conurbation; so even if I could have found a map of the system online, which I couldn't, it wouldn't have been possible to print out a useable version myself. Without a bus map to use, I gave up trying to get around and left for somewhere more visitor-friendly.