Light Baking - Runtime Placed GameObject

I was working on Runner king of 3d game play. Usually I was making objects static and do light baking onto those who remain always in game play. Now one new situation occurred in game play for me.

I have few fixed 3d track models exist those I was generating in sequence. So in sequence they become active and de-active so if I do light backing on these tracks then its work or not!!

I am confused on this question wether it will create effect in performance or not if my game objects become active and de-active continuously.