In your second sentence you answered the question I had upon reading your first sentence and that was how much of a presence did ASL have.
I noticed at ASLOK that pretty much everyone there was a Greybeard (myself included...). It seems like ASL isn't attracting the younger players like it did when we were younger.
Wargames were never big and always a nice in Germany. No comparison to the anglo-american market. This is probably due to our historic background.
On the other hand, what is nowadays called "Euro Games" has always been big in Germany. I have heard, that Euro Games find an increasing popularity in the US for a couple of years now, too.
LARP is also big in Germany. There used to be a bit of LARP stuff at SPIEL, but this has shifted to the RPC (Role Playing Convention) in Cologne, which is also held anually. The world's two largest LARP events (along with many others...) are held in Germany: "Conquest of Mythodea" with 6000 to 8000 participants and Drachenfest with around 5000 participants. And this means
no spectators but only dressed up players.
von Marwitz