Comment by tsimionescu

Isn't NAT the only real difference? In IPv6 you get NDP instead of ARP, but you generally still need DHCPv6 for many kinds of networks. So you have IPv4 + ARP + DHCP + NAT, vs IPv6 + NDP + DHCPv6. Not that much of a difference. Especially since, for a household user, there is actually pretty little difference between NAT and just a stateful firewall.