I would venture a guess that as more and more disheartened undergraduate STAFF nurses become increasingly frustrated with bedside, clinical positions, they are entering graduate programs in greater numbers than in the past. And these graduate schools are just waiting there with their hands out for enrolling students. And with the influx of e-education, there's a glut of advanced prep nurses.
Where are the job positions for Master's prepared nurses? Advanced administration, advanced clinical practice like NPS, PAs, CNSs, CRNAs, etc and education. But there are only just so many, finite numbered positions avail. Couple that with the increasing number of nurses (just like the general public) holding onto their jobs longer, staving off retirement until later because of the unstable economic work environment.
A very large number of traditional nursing school teaching positions are civil-service; too cushy to be given up early, so there's another reason those positions are so limited. Staff development positions within good hospital systems are to be coveted similarly .
So that's my take on why you're seeing such a dearth of education positions. There are alternative teaching/education tracks - like CDEs, pvt industry and consulting to name a few. But again, you'll have to look far & wide to compete with so many others in the same situation as you.
And I think it's going to get worse soon as the higher-educ staff bump-down to positions that require a lower-educ entry level.
I believe 'the golden age' of nursing has passed.
Just my opinion.