i personally so not have any problem with tourists visiting berlin. drinking, throwing up, urinating against walls, photografing everything... i do not mind. still, i did illustrations for an article in Zitty-Magazine on the topic of how berlin could develop to attract even more tourists and deal with them. several concepst were discussed: disneyland of subcultures, schiessbudenfest, go green, anarchistic parties, attract only the wealthy...