I'd go to Frankfurt or London, both sound great. Seriously why are people always afraid of change? If you always stick to your habits, you're never going to experience new things? Of course we know Amsterdam by now, which is great, but wouldn't it be much more exciting to experience a whole new city? And seriously, once we say it would be Frankfurt, people will come, maybe not exactly the same people that would go to Amsterdam, but therefore other people would be there, maybe even more people from Poland?