When I first made the decision to take a leave of absence from IBM and go out on my own (before I was laid off), one of my primary motivations was that to stay at IBM I would have to completely change my career path. That path would have moved me away from working primarily on client software (which I'd done since I started at IBM) to working primarily on server software. At the time, this type of work didn't really appeal to me.
But the truth is there was one motivator behind my final decision:
I didn't want change.