Work environment makes a huge difference. My current job is pretty harmonious among the coworkers, the bosses and team-leaders are all engineers themselves or at least tech-literate. They are also very preoccupied with the welfare of employees and even kept a completely unproductive (bad fit) employee on for half a year to help him score a new job first.

The customers are almost always happy with what we produce, and while it is certainly not fast growing, the company is steadily progressing in a good direction.

This environment is worth a lot of money to me.