Other Countries and Thoughts
A couple thoughts on the price thing from a global perspective.
I am going to Globe in a couple weeks widely acknowledged as a top experience. Prices there are set at 124/ halfhour (current exchange rate). As borders are relatively free would not a top girl prefer to work at Globe for 124 than Sharks at 50? So the best girls will work st Globe (seems borne out qualitatively in reviews of both) Does this not lead to the conclusion that by trying to artificially keep prices lower in Germany that the effect will be the quality in German clubs will be lower in a free market?
Japan of course is one of the most xenophobic countries in the world. They have made it explicit that most options are only available to Japanese and there is a significant Gaijin extra charge (for foreigners). This has led to the establishment of services that ONLY serve foreigners and will not serve Japanese.
The best part of the system at Tokyo Hentai Club (a foreigner only club) is they rate the girls silver gold and diamond. If you want to pay less you take a silver. Pay for best experience take a diamond. Makes perfect sense! No expectation that you get a diamond at silver price. (Though often silvers are new so maybe roll the dice and 1 in 10 is silver headed to diamond.