Unfortunately, the Leica's take-up spool needs a long tapering tongue of film, which users must wedge under a springclip on the spool's barrel before manually wrapping a few turns of film around it.
"Booming" is a relative term: None of these cities would fog a mirror in China, where personal incomes have climbed at a steady 15% annual clip since 2000 and cities with millions of residents spring up practically overnight.