It is indisputable that politicians use the money for recreational purposes like concerts, shows, etc, but this may cost a big amount of money, which could be used for public services that are indispensable. It is known that this shows require a lot of infrastructures such an installation of equipment, engineers and payment to the person who works there. In my opinion for example my country this is a waste of capital, there are other priorities and citizens do not agree to invest the money of their taxes in entertainment activities.