My wife and I discuss relevant matters of the household economy, like presently buying a new Danish wood stove or plans for remodelling the kitchen. We don't discuss shaving gear or cosmetics. That said, I have actually saved money on switching to traditional wetshaving some ten years ago. With the absurd prices Gillette asks around here (30€ for 4 of the latest cartridges are not unheard of), I would have spent a whopping 3600€ on cartridges alone. Yes, I know they tell you that they will last a month. Not...
My budget for a small collection of 15 razors (mostly vintage DE, a few modern stainless steel models and two straights), three brushes and 20ish soaps comes nowhere close to that. I haven't had much RAD the last years, my last acquisition was the Rockwell. My daily driver is still the Weber ARC or DLC, I haven't found anything better yet (not the Standard, not any ATT or Wolfman - they all were sold off again). However I still buy more soaps than I need. My wife is quite happy with her Lady Gillette, long handled boar brush and her own creams, but is obviously welcome to try any of my gear should she ever fancy it. We're in this together, there is no point in jealously guarding a soap or razor from my best friend and lover, is it?