I'm poor, and have a 50 mile one way commute to my job. I stayed at my job because of college (I was going to a college close to my job... will be picking up my associate's degree next week, however
) and the fact that I like what I do.
If I could go completely car-free, I could move to near my work. However, as I said, I'd have to go COMPLETELY car-free, to get rid of insurance and all of that. And, once I would go car-free, there's no turning back - once you've had no car insurance for more than 30 days, you might as well be a triple-DUI driver starting back up, with how the insurance companies **** you.
And, getting a job close to where I'm living now? Great. Except everything within safe biking distance (that is, avoiding roads that are high traffic, high speed, AND redneck infested) is... pumping gas, bagging groceries, or flipping burgers.