Spookily I was contacted last week by a German 172 pilot who was transferring his aircraft to UK registered, because the cost of the SIDs which Germany insist on, were more than value of his aircraft. So he is putting on G-reg but keeping it in Germany. (All he wanted from me was to understand LAMP and what he needed to use).
With the German demands re SIDs, there should be a lot of cheap Cessna to be had!