I think adjuncts only work when there are people that have a well-paying full-time job, but who would also have to teach part-time. Their motivations could incl

I think adjuncts only work when there are people that have a well-paying full-time job, but who would also have to teach part-time. Their motivations could include earning a bit of supplemental income, furthering their own skills (teaching is a great way to learn), making connections with students (perhaps their day-job employer allows them to teach in place of some of their normal responsibilities)... Adjuncts don't work, IMHO, when the faculty is hoping to use the position as their sole source of income.