Many german ISPs now “provision” their customers (i.e. practically everybody)
with IPv6-connected middleboxes that translate a non-routable IPv4 net at one end
to an address from a small pool of routable IPv4 addresses at the ISP. The IPv6 networking
is a side-effect.
Now everybody has IPv6 connectivity, it seems. But the german ISPs don't assign static v6 prefixes,
they change them periodically as they did with v4 addresses in the heydays of forced DSL disconnects.
The ISP that supplies uplink at my home has a /32 prefix. They could subnet this in 212 ways
to map their routing topology and still give out 220 static prefixes to their customers.
When asked nicely, they responded that they do not even consider it.
Why not? Because everybody could then run servers at home without paying extra for it, because
that's what End-to-End Internet was all about. And they make sure it is not going to happen, IPv6
or not. (See also artificial scarcity)
So people run tunnels to SiXXs (of fond memory) and hurricane electric to get decent IPv6 prefixes
through the already IPv6-enabled infrastructure of their providers.
Searching for ISPs around here that do hand out static prefixes was depressing. There are
high-profile providers with technically excellent offers
for commercial entities with a steady flow of earnings, but for a non-profit project they
are way too expensive (€ 250 and more per month).