I agree on that. I've moved to Berlin together with hype and there is only handfull of really successful startups. Berlin needs more internet millionaires and more transparency. By now, afaiks most of Berlin tech millionaires come from Rocket Internet and people that spawn out of RI have different mindset from what you can see in Valley. But, I'm pretty sure that new generation of Berlin entrepreneurs are on good path to change tech scene from ground up.