I have never been to the DA and if someone is playing and having fun in the main arena why should he/she go to the DA at once when invited? Who is more concerned about their ego: the one who keeps on having fun and playing in the MA or the one who gets shot down and invites another player to the DA to have a "proper fight"? I read about the F3 view in this thread and not so long ago there was a topic about people using diving from altitude to have more energy when they merge at an agreed altitude in the DA.
If DA is your thing please do invite people there with you, but don`t always expect them to say yes. I have a feeling that an open invitation is a lot more promising. What are the chances that if someone adresses you directly you are going to play someone else`s game with questionable fairness for awhile until someone`s bruised ego gets recovered?
This is a great dance you've performed. Remember, the real answer about going to the DA is self-assessment. How good am I really? What things can I work on? I've always wanted to fight that person because he always seems to get rescued. As for myself, feel free to ask anyone, I've had my bellybutton handed to me by more than a few people here that I called out to the DA. I learned something from every one of them.
The question you have to honestly ask yourself is:
Why don't I want to go?
