The progress does feel more real though, which motivates.

To a large extent even an N1 is useless too for practical uses. It doesn't cover production so employers etc are more concerned with interview performance anyway. But it's psychologically validating.

I have a friend who has N1 and who still just works as an English teacher, so it's not like it suddenly opens lucrative doors.

Also the N5 is a requirement for some student visas I believe.