
for AAA titles, installing and running them already feels like a burden. PC games use to ship on 700 MB CD and 4 GB DVD and I think it's insane to see more than 2 discs in a box. Developer have to save every triangle on the model and every MB of texture memory to work on limited resource. Now they just ship 8k full LOD and let UE handle the optimization part. Won't complain if it works good.
80 GB for one game is not ideal