My wife still dances all-out, and she goes every weekend to see Doc or Farina or DJ Dan or whoever is in town. She can't live without getting sweaty from dancing, and I admire her for it especially as we're getting older - I'm in my 50s now, my knees are not what they used to be.
Have you seen the recently released documentary about Wicked Soundsystem? I'm guessing you're probably familiar with those guys. We saw it in a theater in LA and then went to the after party, it brought back so many memories.