So, for a smart home where some parts are actually, well "hidden" in the building you find if feasible to just upgrade? I mean, how much could a house cost, ri

So, for a smart home where some parts are actually, well "hidden" in the building you find if feasible to just upgrade? I mean, how much could a house cost, right? Stuff like this should be forbidden. Non-experts simply cannot fathom the consequences of their decisions. Nobody would expect parts of their house need complete replacement after just 7 years (if they were in good condition in the first place and there was no catastrophe) This is not even talking about e-waste and the environmental issues that arise from more high tech garbage