I wonder about this, maybe science and math- but I know it's almost impossible to get a Job in the Buffalo school district in History, English, Primary, and to a lessor extent Special education- we graduate a huge number of teachers in this area and most are going west or south, plus in special education we cycle through young teachers who stay a year or two then go west or south- some come back once they fatten up their resume but many find they can live without 5 months of cold gray weather.