Jer,

I know of an educator who negotiated a $2,000 bump in his salary by stating that he has special AV media skill set as that school didn't have anyone with that background. So he had a "regular" salary and received $2,000 in additional bump in salary for AV knowledge base.

You can try to bump your salary by offering to be the school's debate coach or whatever other skills you can offer to the school/program. Be creative!