Flying over Spring Break next year--need airfare advice  

Hi everyone. My spouse is a teacher and has off the week after Easter every year. Next March, we would like to fly to Florida to visit my family. We would leave the day after Easter and return the following Sunday. We would leave from Milwaukee and fly in to Ft. Myers. I know that week is very popular and tickets are often very expensive. I have a family of four and we have not flown in many years. I found a price of $264 per roundtrip ticket today and am having that price held until noon tomorrow while I decide. Does that seem like a fair price for Spring Break flying? I know it's very far in advance, but it seems to me that if I wait, all seats will either be taken or the prices will be higher. I found a price of $267 at travelocity and then went directly to the airline's site and found it for a few dollars cheaper. Any advice would be great!