I had something similar. Rock solid. Wired back haul. Nice manual. I knew it wouldn’t add $$$ to the house but I was a little surprised to find out it actually put a lot of people off. It had negative value as I had to rip it out and go analog.
Even nerds looking at the house wanted to do their own thing not maintain someone else's ideal and normies refused to spend ANY mental energy on understanding it.
Was eye opening!
But your point is well taken and I'll be sure to introduce the subject at the handover if it ever comes to that.
Energy efficiency was my main goal too but no one gives a fuck about that here either so it’s a different market.
What also helps is that the whole system runs without any user intervention. The manual is mostly aimed at people hired to add stuff at some point in the future, or in case something breaks.