Backup/restore is one common usecase. It's painfully slow with current speed. AFAIK only Pro model support USB3 speeds. Someone more knowledgable can maybe explain if there is any technical/cost reason behind it (I honestly don't see one ).
You used to be able to do syncing with iTunes via WiFi. Can you do that for backups? WiFi is bound to be faster than USB 2.
I believe most people do iCloud backup/restore nowadays. I only do manual backup/restore once every few years when I upgrade my iPhone (even then, I could probably do that via iCloud also)