"IPv6 is not the question — it's the answer," Leslie Daigle, chief Internet technology officer for the ISOC, said during an IETF panel discussion on IPv6. "The question is do we want to continue to have an Internet that continues to be expanded by innovations from everywhere? In which case, we need to deploy IPv6 to continue to have global addressing." "It's something of a broccoli technology, in that regard: It's better for you if you eat it but it's not necessarily appealing in its own right."
Make it right before you make it faster.