In my opinion having a building sub is a bit selfish on the part of the schools. Almost every school I have been to complains about not having enough substitutes, but other schools have building subs with nothing to do some days and they could be utilized in other schools.
Anyway
Initially I didn't accept any of the building sub positions for a few reasons.
1. I'm in grad school and I didn't know what my semester was going to be like in the spring.
2. I didn't want to commit to any one school in case I got stuck in a school I didn't like.
But I recently did accept a building sub position in an elementary school near where I live. I don't know why but I like this school. When I say I don't know why I mean because they have some pretty difficult kids but it's like a few not like the majority of the building. The assistant principal called me and said the position was opening and he had a few people he wanted to offer it to but he wanted to offer it to me first. Since this is a school I like and he said he was willing to work around my grad school schedule I accepted. We'll see how this goes.