could not edit, but probably a lot of people did not understand my comment.
our company often deals with very strict rules so that most services in the internet are blocked.
we use gcp/gke with surge updates, thus we would loose our static access ip.
however now since they explictly need to enable our services we need a static ip and it is way easier to do that with nat gateway.
basically we have a service that connects to http to their external ip which is firewall'd and thus if our client ip's will change it's a headache
