Consumers don't know or care about IPv6, so competition won't incentivize ISPs to implement it. Funny that you complain about Comcast, when I was with Comcast

Consumers don't know or care about IPv6, so competition won't incentivize ISPs to implement it. Funny that you complain about Comcast, when I was with Comcast I actually had native IPv6. With my current provider I only have IPv6 through NAT46.