The best thing about this film is the music

That about sums it up. I remember the Disco Era (1974-1982) very well, because I was living in Europe during it and was the age of the characters in the film when it happened.

It was great hearing the music in 5.1 which filled my media room with some songs I hadn't heard in some time.

Disco is still around in the 21st century in clubs .. so at the end, the were right, it will never die The music just evolved like we all have and moved on from 30 years ago when it went away......