I'm afraid I think you are living in cloud cuckoo land. The whole point of the EU is that it is a single market, note that phrase 'Single Market', single indicates one, market indicates a selling place, the EU has regulations in place to ensure that pricing is the same across the EU, for example it should not be cheaper for me to buy a car in France than in Britain, it is not the case. Also the EU seeks to normalize laws and taxes across the EU and to ensure a free market, for example I can drive across all of the continent without border controls, a country, for better or for worse is rendered to a member state. Costs for running companies should be very similar across the EU, are you seriously saying that it costs more to sell music digitally in Britain than in France?