Glad to hear it arrived in one piece. I had to go through a few returns until I finally received one without a broken batarang. The price you paid is fantastic. That was a real good deal. The AO Bats costume (especially the mask/cowl) is very different from the other Arkham games. AO took place before the other Arkham games. So, his costume was more bulky and less refined because of it. You're getting a Batman that's just starting his crusade and is very raw. I really enjoyed playing that game and that's the main reason I like the B&W AO Bats. It's meant to be different from the other Arkham costumes which Bruce was able to streamline and refine over the years.
As far as kids are concerned, I completely understand where you are coming from. I have 2 sons myself (6 & 8 years old). They do tend to take up a lot of time but since my kids are a little older now, they LOVE video games. My oldest is completely enthralled by the Arkham games so it's gotten to the point where we all play the games together. It's a real blast sharing that experience with my kids. Hopefully, you'll get a chance to play the games one day. They really are quite good.