Whoa wrong answer there pal. As long as you aren't robbing Peter to pay Paul then the wife shouldn't be the final say. I know a lot of people just use the wife as reason not to spend money but I hope that is not the case here. I always look at it like this, I worked a good part of my life and so has my wife. Spending a few bucks upon oneself once in a while only enhances a relationship. When one spouse controls the dollar flow that is where problems start. I say if you want the kit buy it anyway. The wife won't hesitate to buy what makes her happy, and I doubt she'll ask permission first.