Am I crazy for leaving a current teaching job of 14 years in Michigan to move to Florida?

I never thought that I would retire in Michigan. Originally from AL, been in MI for 20 years. I recently went job hunting in Florida and got a teaching job offer for a lot less than what I currently am getting in Michigan. I also have 2 small children, ages 6 and 7 who will be with me. My husband will remain in MI for at least 6 months or more to tie up loose ends like selling our house. He is an industrial electrician and has 22 years in with his company. I want to go for several reasons: better long term job opportunities in administration, warm weather, water access, closer to my own family, and I think a better quality of life. I KNOW it is not going to be easy, but there are so many factors. My current job is in a tiny, suburban school district with NO room for growth. I can't change districts in-state because other districts in MI do not give credit for years worked. The new district in FL is huge with potential for financial growth, but money is not my only concern. Am I being selfish? Am I making a HUGE mistake? Please feel free to give me some neutral advice on helping our family make a final decision!!! What other factors should I include? HELP!