I disagree that Neuro is "a low paying field." Compared to what? GP/FP, IM, Peds, or Psychiatry? The median salary for Neuro is higher than those. Compared to the higher paid IM subspecialties like Cards and GI it is lower. Compared to some other IM subspecialties, like Rheum, it is higher. The surgical specialties do have higher median incomes, but that's to be expected given the longer training requirements and higher reimbursement rates for procedures. I certainly do not begrudge neurosurgeons, orthopedists, or cardiothoracic surgeons who earn much more than I do.
There are more specialists (and MDs in general) in urban areas. The fact is that the number of Board Certified Neurologists is still fairly low compared to the "primary care" physicians or Psychiatrists (the other ABPN-certified specialists).
The need for Board Certified Neurologists is increasing due to advances in the treatment of acute stroke, epilepsy, Alzheimer Disease, MS, and even HA. The old joke that Neurologists can diagnose everything but treat nothing no longer even has a kernel of truth.
Neurology residency offers several subspecialty fellowship opportunities for those who wish to extend their practice and gain ABPN certification,
e.g. Clinical Neurophysiology, Sleep Medicine, Pain Management, and Addiction Medicine. All of these subspecialties are in demand, and Third Party reimbursement increasingly requires Board Certification.
So, I don't think Neurology is a low paying field at all.