I am through with IPv6.
By now all my websites (that I know off) are dual stack with native, untunneled IPv6. Thanks to Xs4all.nl and AVM.de (the FritzBox guys) I have native IPv6 in my home office. Setup was a breeze. On http://test-ipv6.com/ my connection scores 10/10 for IPv6 readiness.
I have had a lot to do with the Dutch government. Currently the main site www.rijksoverheid.nl is fully IPv6 capable, and for the internal network the decision to enable IPv6 has been made at the top, and is now trickling down into the it departments. This is going to save them a fortune by reducing NAT (Network Address Translation). I can tell you from first hand experience.
So for now, my mission is accomplished. If you need help rooting out isolated pockets of resistance, give me a call.