Well, if you have virtuals running on your dedicated server, you're probably going to need more IPs anyway and IPv4 subnets now cost a small fortune on Hetzner,

Well, if you have virtuals running on your dedicated server, you're probably going to need more IPs anyway and IPv4 subnets now cost a small fortune on Hetzner, while IPv6 is free and you get a whole /64 subnet.