The neonatal specialty is becoming more popular and necessary, as more hospitals open NICU wings and start treating high-risk pregnancies and very premature babies.
Seems like when I was a teenager, you heard of micro-preemies being taken to the "big" teaching hospital miles away. They were never treated close by. But this is changing. Many more hospitals have a NICU and several neonatal doctors on staff. Twenty or thirty years ago, there might be just one or two of these doctors in an entire state. Medicine has changed.