> shouldn't we drop them and trying to
> invent or looking for something new?

tl;dr: Many people don't want to learn a new editor

The full answer:

> A UNIX wizard hears cries of torment
> from his apprentice's computer room
> where the apprentice is studying, and
> goes to investigate.
> 
> He finds the apprentice in obvious
> distress, nearly on the verge of
> tears. "What's the problem?" he asks.
> "Why did you cry out?"
> 
> "It's terrible using this system. I
> must use four editors each day to get
> my studies done, because not one of
> them does everything."
> 
> The wizard nods sagely, and asks, "And
> what would you propose that will solve
> this obvious dilemma?"
> 
> The student thinks carefully for
> several minutes, and his face then
> lights up in delight. Excitedly, he
> says, "Well, it's obvious. I will
> write the best editor ever. It will do
> everything that the existing four
> editors do, but do their jobs better,
> and faster. And because of my new
> editor, the world will be a better
> place."
> 
> The wizard quickly raises his hand and
> smacks the apprentice on the side of
> his head. The wizard is old and frail,
> and the apprentice isn't physically
> hurt, but is shocked by what has
> happened. He turns his head to face
> the wizard. "What have I done wrong?"
> he asks.
> 
> "Fool!" says the wizard. "Do you think
> I want to learn yet another editor?"
> 
> Immediately, the apprentice is
> enlightened.
> <sup>[http://neugierig.org/content/unix/](http://neugierig.org/content/unix)</sup>