You are a bad person. Go to your room and think about what you've done. :embarasse
...ok, seriously now, there really isn't any situation that benefits from vertical video since all the playback mediums are still horizontal. If you shoot it vertical, you're still going to either crop it or reframe it and lose 2/3 of your image and resolution!
Like I said. It's bad but sometimes might be the only solution to get your subject in to the frame.
Now for that people in those situations... i think they don't give a **** about losing some resolution..and that's all I have to say about it
I think that higher frame rates might just be a big thing 'cause those cheap GoPro's are spreading like fire. When consumers get their hands on good or even average slowmo they are going to want more.