While I know I was claiming the opposite, it is actually an anxiety by of mine.
In my first townhouse I had wired in speakers, and network/cable/phone everywhere. There was a really nice structured wiring box tying it all together. It was beautiful.
When I sold, the realtor made me leave my speakers, my router, my switches, because she claimed it was part of the house and no one could use the wiring without it. What a load of BS that was, but when a home sale is on the line, no point in swearing the small stuff. After I factory reset things, what good does it do them over buying their own, wither own account, and a user manual?