I agree with pretty much absolutely everything you said there except that. Wroclaw's terrarium system is not different, (from what I have seen) to Berlin's - in fact I'd even say Berlin's looks a bit better....
Let me clarify my statement. Berlin has better herp displays in the Aquarium than Wroclaw has in the Terrarium, no question about that. That is not to say that there aren't nice enclosures in the Terrarium and Wroclaw definitely has more species on-exhibit despite what's been implied earlier, but Berlin is definitely more consistent in its husbandry standards here. When it comes to the superb design of the Odrarium and the fantastic and borderline jaw-dropping displays in the Afrykarium, though, Berlin simply cannot compete. The point I was trying to make is that best of what Wroclaw has to offer (which is several enclosures across multiple exhibits) far exceeds anything at Berlin, even though Berlin does better than Wroclaw in some other areas.
~Thylo