Neutron DVR Public IP usage

Folks, Many years ago I deployed DVR (distributed virtual router) with packstack and found it required public IPs on each computes node + SNAT IPs, now the question is if i have 300 compute nodes then how do i deploy DVR with /24 public subnet which i have. If my cloud computes are going to eat up my all public IP then who is going to deploy DVR? In short, DVR is a bad idea for public clouds until IPv6 takes over the world, am I missing something?