WeeBaby, I love your avatar. It's rockin' awesome.
One only becomes too old for anything when they've decided they've outgrown it. I know a couple of retirees at my church who have a hobby of building lego sculptures for the kids in their neighborhood.
I don't think adulthood means one quits having toys. I just think the toys get better as does the practice of the hobby. Good for you for having a hobby that you can enjoy with your baby. That's more special than he realizes right now, and as he gets older, it'll mean more.
I love seeing WoW keep families close. /warm-fuzzy