Suggest not comparing her purchases to yours, trust me, unless you like sleeping on the couch. The problem isn't trying to hide it, the problem is covering the financial record of the purchase. Hey, 10 bucks, 20 bucks here and there, after 6-8 months, there you go. Then
you can safely buy and tell your wife you bought it from a guy for pennies on the dollar cause its broke and your going to fix it. Then sit at the table with some micro screw drivers and play around a bit. There you go "it's fixed!"
You have a baby coming however and you need to think of that. Responsible suggestion, sell everything you have not used in last 8 months. Your baby is going to need it. Besides I feel hassie's really are over rated. It's not all in the camera, it's mostly the person behind it.