Ask HN: How to sell a PI class C network?

There had been no 192.168/16, 10/8 or 172.16/20 private networks, when I joined the internet ages ago. Instead the RFCs told, that one must register a provider independent class C network before. So I did.

A provider independent (PI) network means, that I own it forever, that I do not need to pay any (annual) fee for it. But also that I can not force any provider to route this network. Unfortunate my network is no longer routed, since I moved housing, even if I stayed at same provider, as the routing of the network was informal done by a friend working for that provider. So I'm using it like a better private network at home and for OpenVPN.

The network is now part of AS20676 university autonomous system, when classless IP became common, so it requires just a mail to UniDo to switch routing to any place in Germany and perhaps even Europe. And a provider willing to accept that route.

My questions:

- What is a provider independent class C network worth? - Is there any market for class C networks?