Why does Heathcliff (Kayaba) smile at the end in episode 14?


In episode 14 of SAO, at the 14th minute mark:

> Kirito kills Kayaba. He did not try to stop Kirito, and died smiling. Was he
> waiting to be killed by Kirito?

Did Kayaba expect it?




From the [SAO
Wiki](http://swordartonline.wikia.com/wiki/Kayaba_Akihiko#cite_ref-
popularitycontest_8-6):

> The happiest moment to Akihiko during SAO was when Kirito saw through his
> true identity on the 75th floor, as Akihiko then realized that he (Akihiko)
> was nothing more than another player.

\- Q&A session in the third popularity contest held by Kawahara Reki as Kunori
Fumio, 2005




If I remember correctly it's never said. But it's probably to do with the fact
the Kirito defied the system, as Kayaba does mention something similar in the
final episode of Season 1.

