Slow motion cameras can capture lots of interesting bits of movement that you cant see in real life, or in regular videos. 

What video scenes would you like to see from a slow motion camera at 1000 fps?  

For instance, here is a "hopping" clip at 200, 420 and 1000 fps.  

http://www.youtube.com/watch?v=qjac1Q3lozY

Here is a fucking video where the girls boobs bounce in a very interesting way, but we can't see any of the details because it all happens so fast.  

http://www.sexsearchtgp.com/1891/online-dating-websites/9803