I'm still in it... I'm a Ph.D. candidate in Distributed Systems, virtualization, Cloud Computing and so on.
Everything fits perfectly. I always wonder if I'm employing my time properly in academia. But they keep me too busy to think about it deeper. Research also keeps anyone tired, too much time dealing with the same problem, lacking some fresh air once in a while to breathe. We are emotionally involved with the work, loyalty and devotion and so on. Intermittent rewards when some of your articles are accepted... And the real awards are distant, the Ph.D. itself.
Thanks! I'm seriously thinking on finishing my Ph.D. and getting out of the university. The university is full of huge egos (with very few exceptions), and people are very hard to deal on a daily basis. There are hard people everywhere (I've worked on the software industry before, I know them), but in the university this is the rule. Also, as you predicted, I'm afraid I may become like them.
"I'm afraid I may become like them" was a big factor for me leaving academia - I was starting to play all the silly games that drove me mad when I joined.