It was between the limited wrx or base sti for me. Went with the limited wrx because it is going to be mainly the wifes car and my weekend driver. I have a long commute so I don't want to be racking up the miles on it. The difference between 500 a month and 400 a month isn't huge but with the wife driving it 70% of the time and me not planning on modding too much other than light suspension and power...and just DD..didn't see the need.
With a baby on the way...unless you can easily afford the difference...do you really NEED the sti? You're going to be extremely busy with your first newborn..