Cool stuff in the martial arts

Here is my list of impressive-looking things in the martial arts that are of limited interest (to me):

1. Acrobatics
2. Super flexibility
   
3. Breaking stuff (boards, bricks, etc.)

And here's some non-basic stuff that hold more interest (for me):

1. Using an assailant's strength against him
2. Learning to use weapons as a natural extension of your body
   
3. Pressure point techniques
4. "Internal" aspects
5. Healing methods

Of course the basic stuff is pretty good too:

1. Self-defence
2. Technique
3. All-round fitness
   
4. Personal development
5. Social development

And much broader!