Yeah, there are a lot of situations where NAT is actually preferable. Not everyone is going to need inbound ports, and the stability you get by having internal addresses is a feature, not a bug

Tie all your network config to your IP space provided by your ISP and now suddenly it's a pain to migrate to a different ISP

Or, if you want to carry your own IP space, now you have the administrative overhead of managing that (and, now you have to go with higher-end business internet service that may be more than you need, just to support bringing your own IPs)