Hey Ulli,
I tried several months ago here in Netherlands and they told me that I could not buy it any more and suggested me to try Belgium.
Uh.. the problem with that is that you need an address in Belgium as they do not send it any where else.
Same with your German link, I just tried to order there and they required a German delivery address...
Btw, your link seems to be just Snow Leopard client/desktop version, not Snow Leopard Server?
TS if you are in the US, call them, 1-800-MY-APPLE, part number MC588Z/A, there's a fair chance you can still get it there.
--
Wil