This is interesting... it reminds me of what I tell people when they ask if I'm going to finish college.
I can count the classes I'm missing on one hand, so I often get asked when I'm going back, and they're shocked when I say I'm not. Basically, at this point, a degree will only stop me from getting boring, corporate jobs. I don't want those. But if my startup were to go under, it'd be real tempting... and then I'd get caught in a tarpit. I'd just rather not risk it, and make it harder on myself to get boring jobs.