Promethean Boards VS Active Boards

Good Morning! First a little background, I was working with a huge Active Board in Pittsburgh Public schools in the early 1990"s. It was a K-5 school I was Tech Support--taught Tech and was the Media Specialist. You know budget shortages!! I have a Promethean in my Media Center, there is an Actiboard in the Lab. The P board has a pen----the ActivB can be manipulated by fingers---especially little kids fingers. The district I am in is just purchasing these boards. I love my P Board and use it everyday-----it is always on---the kids know how to calabrate it and are working on it daily. What are your pro's and con's on these boards.