As a genre it lasted wayyyyyy too long. It would have been OK if it would have burned itself out in about 90 days. Instead, it lasted an entire decade.
There were some good songs, most were bad. I joined the "Death to Disco" squad when Rod Stewart and the Rolling Stones decided to do disco tunes (even though I like both "Do Ya Think I'm Sexy?" and "Miss You" a lot). At that point, I knew the trend had become a danger and needed to go.