pay for educators?

I have been an RN for 26 years. I am completing my BSN next year and plan on going right into a Master's in Education Program. After talking to several that I work with I am wondering about my choice. They said that in Ohio you would have to take a pay cut of about 25% to work as an college instructor. Is this true in all states? I have always wanted to end my career teaching. I would love to pass own my love for nursing.