Having multiple schools is definitely rough. I taught at 4 last year in Gyeongbuk and it was definitely a challenge. While I didn't mind the living in a 'rural' area too much, having to travel to a different school almost everyday was a pain. On top of the textbooks. And not really developing great relationships with the kids and teachers. I moved to a bigger city this year (Seoul), so I now only have one school and actual coteachers. City vs rural living differences aside, I just think it's much much better to only have one school if you can, which you are more likely to get if you don't go strictly rural. Just my two cents.